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The death of Alan Criddle on May 2nd 2002, aged just 57, was a tremendous loss both to his friends and family and to the international mineralogical community. At that time Alan was Chairman of the Commission on Ore Mineralogy and UK national representative on the Commission on New Minerals and Mineral Names of the International Mineralogical Association. His loss will be most keenly felt in the field of reflected light microscopy as he had taken up the challenge of quantifying the reflectance of ore minerals and creating databases such as the Quantitative Data File (QDF) for Ore Minerals (2nd and 3rd editions), that could be used for mineral identification. In addition to planning a 4th edition of the QDF available free over the internet, prior to his death he was also working on the idea of producing internet or CD digital images of ore mineral textures in reflected light.
Alan’s first interest in rocks and minerals was probably stimulated as a child by collecting fossils and stones from the coastline of his native South Wales.
Attending his local university in Cardiff, he was awarded an honours degree in petrology by the University of Wales in 1966. Subsequently, Alan undertook a masters degree on mineral deposits in part of the South Wales coalfield, successfully completed in 1967. After a period as a research assistant, again at Cardiff, when he started work on a PhD on the Llanharry iron mines that was never completed, in 1969 he was appointed Scientific Officer at the British Museum (Natural History) with the responsibility for initiating research in ore mineralogy and microscope-spectrophotometry. Within a few years he was promoted to Senior Scientific Officer and his laboratory was under development.
Working with Peter Embrey, and together with Norman Henry he helped to develop both technique and theory in the quantitative measurement of reflected light optical properties of ore minerals. He took over the editorship of the Quantitative Data File for Ore Minerals from Norman Henry in 1978 and, together with colleagues and collaborators around the world, worked towards producing a 2nd edition filling significant gaps in the original database. When the 2nd edition was published in 1986, the cover was a light blue (Cambridge) in honour of Norman Henry, detail and wry humour typical of Alan.
In 1988, Alan’s work was recognized by the naming of the mineral criddleite TlAg2Au3Sb10S10 from the Hemlo gold mine in Canada.
Towards the end of the 1980s, with the changes associated with a new Head of the Department of Mineralogy and a new Director of the Natural History Museum, Alan turned to applying his work in spectrophotometry to the field of materials science, teaming up with Karen Reeson, a former PhD student. A Science and Engineering Research Council grant was awarded in 1992 on the ‘Non-destructive characterization of semi-conductor materials and devices using microscope-spectrophotometry’.
In the early 1990s work was again undertaken on the Quantitative Data File for Ore Minerals with the 3rd edition published in 1993 almost coincident with the award of a DSc from the University of Wales.
Alan’s scientific legacy includes four co-edited monographs, of which the Quantitative Data File for Ore Minerals is the main reference work in the field. He produced more than 110 peer-reviewed papers, with co-authors from all over the world. Of these papers, no less than 65 are descriptions of minerals entirely new to science, some of which were discovered by him, others for which he provided characteristic optical data.
Alan was kind and generous, always willing to give up his time to his students, research assistants and other colleagues, also to the various learned societies and organisations of which he was a member. He served the Mineralogical Society of Great Britain and Ireland as Treasurer from 1986 to 1991 nurturing the Society’s investments at a time of growth followed by economic downturn. More recently he served on Council from 1998 until 2000 and as a Managing Trustee from 1997 to 2000. He served the International Mineralogical Association as Chairman of the Commission on Ore Mineralogy from 1998 until his death having spent more than 20 years as Treasurer, and he was UK representative on the Commission on New Minerals and Mineral Names from 1988 until 2002.
He helped organize many Short Courses, Workshops and Summer Schools around the world, most recently the series which started in Budapest in 1995, and was followed by Porto in 1997, Ottawa in 1998, Pretoria in 1999, and Helsinki in 2000.
The research groups now working on mineral systematics, ore deposits and environmental mineralogy at the Natural History Museum in essence continue the work he started.
As a person, he was sociable, a fastidious bon-viveur whose acute sensory perceptions enabled distinction between the perfect and marginally less than perfect. Few who dined with him would have missed seeing food or wine of less than the highest quality rejected as such. Likewise his aural demands ensured the best attention from hi-fi specialists and merchandisers. His love of music ranged from Gregorian Chant to Jimi Hendrix and more lately he was a fan of the Russian pianist Grigory Sokolov.
He was an accomplished artist of several hundred works, some of which he exhibited and sold. Many are colourful and vibrant; others reflected his pain and agony or the effect of the strong painkillers that took over the last few years of his life. Regarding his art he wrote
"....I have been called to paint intermittently since childhood, drawn to paint first by the images hanging and stored in my home. These, to my childish eyes, were mysteriously beautiful. Two oils, of lilies and bull rushes, painted on mirror, though yellowed by light, nicotine and mirror polish, were real to me ...".
Although his illnesses kept him away from the Natural History Museum for long periods during the last seven years of his life, he remained active and productive while working from home often in great pain and discomfort borne with characteristic courage and fortitude.
We salute Alan’s achievements in science which earned the respect of friends and colleagues from so many nations. He is missed by us all.
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Criddle, A.J. and Stanley, C.J. (eds) (1986) The Quantitative Data File for Ore Minerals of the Commission on Ore Microscopy of the International Mineralogical Association (IMA/COM). 2nd Edition, British Museum (Natural History) London. 477 pp.
Criddle, A.J. (1986) Introduction –47 pages and, with various co-authors, original data sets for minerals in the Quantitative Data File for Ore Minerals - 196 pp.
Gerlitz, C.N., Leonard, B.F. and Criddle, A.J. (1989) Reflectance of ore minerals – a search-and-match identification system for IBM and compatible microcomputers using the IMA/COM Quantitative Data File for ore minerals, second issue. (A joint report of the BM(NH), USGS and IMA/COM). USGS Open File Report 89-0306A-0306E 12pp, 4 discs.
Criddle, A.J. (1990) The reflected-light polarizing microscope and microscope-spectrophotometer. Chapter 1 in Advanced Microscopic Studies of Ore Minerals (J.L. Jambor and D.J. Vaughan, editors). Short Course Handbook, Mineralogical Association of Canada, 17, 1–36.
Criddle, A.J. (1990) Microscope-photometry, reflectance measurement, and quantitative color. Chapter 6 in Advanced Microscopic Studies of Ore Minerals (J.L. Jambor and D.J. Vaughan, editors). Short Course Handbook, Mineralogical Association of Canada, 17, 135–169.
Criddle, A.J. (specialist editor minerals) (1992) in Dictionary of Inorganic Compounds (J.E. Macintyre, executive editor). Chapman & Hall, London: 5 Volumes. 5,000 pp.
Criddle, A.J. and Stanley, C.J. (eds) (1993). The Quantitative Data File for Ore Minerals. 3rd Edition, Chapman & Hall, London: 704 pp.
Criddle, A.J. (1993) Introduction – 64 pages and, with various co-authors, data sets for minerals in the 3rd edition of the Quantitative Data File for Ore Minerals – 340 pp.
Criddle, A.J. (specialist ed. minerals) (1994) in Dictionary of Inorganic Compounds (J.E. Macintyre, executive editor). Chapman & Hall, London: Vol. 7, (Second Supplement), 589 pp.
Criddle, A.J. and Ryabeva, E.G., (1994) Reflectance Spectra: their interpretation using band theory, and application in mineral identification. In Advanced Mineralogy: Composition, Structure and Properties of Mineral Matter (A.S. Marfunin, editor). Springer-Verlag, Berlin, pp. 487–491.
Criddle, A.J. (1998) Ore microscopy and photometry (1890–1998) Chapter 1, in Modern Approaches to Ore and Environmental Mineralogy. Short Course Handbook, Mineralogical Association of Canada, 27, 1–74.
Stanley, C.J., Rankin, A.H., Bodnar, R.J., Naden, J., Yardley, B.W.D., Criddle, A.J., Hagni, R., Gize, A.P., Pasava, J., Fleet, A.J., Seltmann, R., Halls, C., Stemprok, M., Williamson, B., Herrington, R.J., Hill, R.E.T., Prichard, H.M., Wall, F., Williams, C.T., McDonald, I., Wilkinson, J.J., Cooke, D., Cook, N.J., Marshall, B.J., Spry, P., Khin Zaw., Meinert, L., Sundblad, K., Scott, P., Clark, S.H.B., Valsami-Jones, E., Beukes, N.J., Stein, H.J., Hannah, J.L., Neubauer, F., Blundell, D.J., Alderton, D.H.M., Smith, M.P., Mulshaw, S. and Ixer, R.A. [editors] (1999) Mineral Deposits: Processes to Processing. Balkema. Rotterdam. 1468 pp. 2 vols.
Papers
Criddle, A.J. (1968) Mineralization in the Carboniferous and Mesozoic strata in the area of the south crop of the South Wales coalfield. Transactions Institute Mining & Metallurgy, 77, B174–B175.
Gayer, R.A. and Criddle, A.J. (1969) Mineralogy and genesis of the Llanharry iron ore deposits, Glamorgan. Proceeedings of the 9th Commonwealth Mining & Metallurgical Congress. (London) 1969, 15, 1–22.
Hendry, DF. and Criddle, A.J. (1970) Reflection values for goethite. Archiv für Lagerstaettenforsch. Ostalpen, 10, 197.
Criddle, A.J. (1974) A preliminary description of micro-crystalline pyrite from the nanoplankton ooze at site 251, southwest Indian Ocean. Initial Reports of the Deep Sea Drilling Project (T.A. Davies and B.P. Luyendyk, editors) XXVI, 603–611.
Criddle, A.J. (1974) Ore Polishing. Proceedings of the 1974 Ore Microscopy Summer School at Athlone (ed. M.J. Oppenheim). Geological Survey of Ireland Special Paper, 3, 78–83.
Clark, A.M., Criddle, A.J. and Fejer, E.E. (1974) Palladium arsenide-antimonides from Itabira, Minas Gerais, Brazil. Mineralogical Magazine, 39, 528–543.[Web of Science][GeoRef]
Criddle, A.J. and Symes, R.F. (1977) Mineralization at Ty Coch, Glamorgan (Mid Glamorgan), Wales: the second occurrence of pyrobelonite. Mineralogical Magazine, 41, 85–90.[Web of Science][GeoRef]
Bishop, A.C., Criddle, A.J. and Clark, A.M. (1977) Plumbian tennantite from Sark, Channel Islands. Mineralogical Magazine, 41, 59–63.[Web of Science][GeoRef]
Davis, R.J., Clark, A.M. and Criddle, A.J. (1977) Palladseite, a new mineral from Itabira, Minas Gerais, Brazil. Mineralogical Magazine, 41, 123 [and miniprint, M10–M13].[Web of Science][GeoRef]
Embrey, P.G. and Criddle, A.J. (1978) Error problems in the two-media method of deriving the optical constants n and k from measured reflectances. American Mineralogist, 63, 853–862.[Abstract][Web of Science][GeoRef]
Criddle, A.J. and Stanley, C.J. (1979) New data on wittichenite. Mineralogical Magazine, 43, 109–113.[CrossRef][Web of Science][GeoRef]
Stanley, C.J. and Criddle, A.J. (1979) Mineralization at Seathwaite Tarn, near Coniston, English Lake District: the first occurrence of wittichenite in Great Britain. Mineralogical Magazine, 43, 103–107.[CrossRef][Web of Science][GeoRef]
Rice, C., Atkin, D., Bowles, J.F.W., and Criddle A.J. (1979) Nukundamite, a new mineral and idaite. Mineralogical Magazine, 43, 193–200.[CrossRef][Web of Science][GeoRef]
Criddle, A.J. (1980) Editorial Policy for the 2nd Issue of the IMA/COM Quantitative Data File. Canadian Mineralogist, 18, 553–558.
Cabri, L.J., Criddle, A.J., Laflamme, J.H.G., Bearne, G.S. and Harris, D.C. (1981) Mineralogical study of complex Pt-Fe nuggets from Ethiopia. Bulletin Mineralogie, 104, 508–525.
Clark, A.M. and Criddle, A.J. (1982) Palladium minerals from Hope’s Nose, Torquay, Devon. Mineralogical Magazine 46, 371–377.[CrossRef][Web of Science][GeoRef]
Criddle, A.J., Stanley, C.J., Chisholm, J.E. and Fejer, E.E. (1982) Henryite, a new copper-silver telluride from Bisbee, Arizona. Bulletin Mineralogie, 106, 511–517.
Desborough, G.A. and Criddle, A.J. (1984) Bowieite: a new rhodium-iridium-platinum sulfide in platinum-alloy nuggets, Goodnews Bay, Alaska. Canadian Mineralogist, 22, 543–552.
Harris, D.C., Roberts, A.C., and Criddle, A.J. (1984) Jaskolskiite from Izok Lake, Northwest Territories. Canadian Mineralogist, 22, 487–491.
Harris, D.C., Roberts, A.C., Thorpe, R.I., Jonasson, I.R. and Criddle, A.J. (1984) Lapieite, CuNiSbS3, a new mineral species from the Yukon Territory. Canadian Mineralogist, 22, 561–564.
Harris, D.C., Roberts, A.C., Thorpe, R.I., Criddle, A.J. and Stanley, C.J. (1984) Kiddcreekite, a new mineral species from the Kidd Creek mine, Timmins, Ontario, and from the Campbell orebody, Bisbee, Arizona. Canadian Mineralogist, 22, 227–232.
Dunning, G.R., Laflamme, J.H.G. and Criddle, A.J. (1984) Sopcheite, a second Canadian occurrence, from Lac-des-Iles Complex, Ontario. Canadian Mineralogist, 22, 233–237.
Pryce, M.W., Hodge, L.C. and Criddle, A.J. (1984) Jeppeite, a new K-Ba-Fe titanate from a Walgidee Hills, Western Australia. Mineralogical Magazine, 48, 263–266.
Criddle, A.J. and Stanley, C.J. (1985) Characteristic optical data for cooperite, braggite and vysotskite. Canadian Mineralogist, 23, 149–162.
Rankin, A.H. and Criddle, A.J. (1985) Mineralizing fluids and metastable low-temperature inclusion brines at Llanharry iron deposit, South Wales. Transactions of the Institution of Mining and Metallurgy, 94, B126–132.[GeoRef]
Stanley, C.J., Criddle, A.J. and Chisholm, J.E. (1986) Benleonardite, a new mineral from the Bambolla mine, Moctezuma, Sonora, Mexico. Mineralogical Magazine, 50, 681–686.
Harris, D.C., Roberts, A.C. and Criddle, A.J. (1986) Izoklakeite, a new mineral species from Izok Lake, Northwest Territories. Canadian Mineralogist, 24, 1–5.
Roberts, A.C., Harris, D.C. and Criddle, A.J. (1986) Cameronite, a new copper-silver telluride from the Good Hope mine, Vulcan, Colorado. Canadian Mineralogist, 24, 379–384.
Dunn, P.J., Peacor, D.R., Criddle, A.J. and Finkelman, R.B. (1986) Laphamite, an arsenic selenide analogue of orpiment, from burning anthracite deposits in Pennsylvania. Mineralogical Magazine, 50, 279–282.
Dunn, P.J., Peacor, D.R., Criddle, A.J. and Stanley, C.J. (1988) Ingersonite, a new calcium-manganese antimonate related to pyrochlore, from La °ngban, Sweden. American Mineralogist, 73, 405–412.[Abstract][Web of Science][GeoRef]
Dunn, P.J., Peacor, D.R., Criddle, A.J. and Stanley, C.J. (1988) Filipstadite, a new Mn-Fe3+-Sb derivative of spinel, from La ° ngban, Sweden. American Mineralogist, 73, 413–419.[Abstract][Web of Science][GeoRef]
Rouse, R.C., Peacor, D.R., Dunn, P.J., Criddle, A.J. and Stanley, C.J. (1988) Asisite, a silicon-bearing lead oxychloride from the Kombat mine, South West Africa (Namibia). American Mineralogist, 73, 643–650.[Abstract][Web of Science][GeoRef]
Raade, R.C., Mladek, M.H., Din, V.K., Criddle, A.J. and Stanley, C.J. (1988) Blatterite, a new Sb-bearing Mn2+-Mn3+ member of the pinakiolite group, from Nordmark, Sweden. Neues Jahrbuch für Mineralogie Monatshefte, H3, 121–136.
Criddle, A.J., Chisholm, J.E. and Stanley, C.J. (1989) Cervelleite, Ag4TeS, a new mineral from the Bambolla mine, Mexico, and a description of a photo-chemical reaction involving cervelleite, acanthite and hessite. European Journal of Mineralogy, 1, 371–380.
Harris, D.C., Roberts, A.C. and Criddle, A.J. (1989) Vaughanite, TlHgSb4S7, a new mineral from Hemlo, Ontario. Canadian Mineralogist, 27, 79–83.
Harris, D.C., Hoskins, B., Grey, I.E., Criddle, A.J. and Stanley, C. J. (1989) Hemloite, (As,Sb)2(Ti,V,Fe,Al)12O23OH, a new mineral species from the Hemlo gold deposit, Hemlo, Ontario, and its crystal structure. Canadian Mineralogist, 27, 427–440.
Haggerty, S.E., Grey, I.E., Madsen, I.C., Criddle, A.J. and Stanley, C.J. (1989) Hawthorneite, Ba(Ti3Cr4Fe4Mg)19: a new metasomatic magneto-plumbite-type mineral from the upper mantle. American Mineralogist, 74, 668–675.[Abstract][Web of Science][GeoRef]
Paar, W.H., Chen, T.T., Roberts, A.C., Criddle, A.J. and Stanley, C.J. (1989) Donharrisite, a new nickel-mercury sulphide from Leogang, Salzburg Province, Austria. Canadian Mineralogist, 27, 257–262.
Criddle, A.J., Stanley, C.J. and Eady, C.S. (1989) Ore mineralogy and mineralization of the Campbell Orebody, Bisbee, Arizona, USA. Abstracts of 28th International Geological Congress, 1, 340–341.
Roberts, A.C., Bonardi, M., Erd, R.C., Criddle, A.J., Stanley, C.J., Cressey, C., Angel, R.J. and Laflamme, J.H.G. (1990) Edgarbaileyite the first known silicate of mercury, from California and Texas. Mineralogical Record, 21, 215–220.
Stanley, C.J., Criddle, A.J. and Lloyd, D. (1990) Precious and base metal selenide mineralization at Hope’s Nose, Torquay, Devon. Mineralogical Magazine, 54, 485–493.[CrossRef][Web of Science][GeoRef]
Pring, A., Birch, W.D., Sewell, D., Graeser, S., Edenharter, A. and Criddle, A.J. (1990) Baumhauerite-2a: A silver-bearing mineral with a baumhauerite-like supercell from Lengenbach, Switzerland. American Mineralogist, 75, 915–922.[Abstract][Web of Science][GeoRef]
Angel, R.J., Cressey, G. and Criddle, A.J. (1990) Edgarbaileyite, Hg6Si2O7: The crystal structure of the first mercury silicate. American Mineralogist, 75, 1192–1196.[Abstract][Web of Science][GeoRef]
Criddle, A.J., Keller, P., Stanley, C.J. and Innes, J. (1990) Damaraite, a new lead oxychloride mineral from the Kombat mine, Namibia (South West Africa). Mineralogical Magazine, 54, 593–598.
Reeson, K.J., Criddle, A.J., Pearson, P., Chater, R.J., Christensen, K., Alderman, J., Booker, C.G. and Kilner, J.A. (1991) Microscope-spectrophotometric analysis to determine the origins of the colour variations on SIMOX wafers. Nuclear Instruments and Methods in Physics Research, B55, 718–724.
Criddle, A.J., Stanley, C.J. and Paar, W.H. (1991) The optical properties of montbrayite, Au2Te3, from Robb Montbray, Quebec, compared with those of the other gold tellurides. Canadian Mineralogist, 29, 223–229.
Roberts, A.C., Bonardi, M., Erd, R.C., Criddle, A.J. and Le Page, Y. (1991) Wattersite, Hg4+10Hg+2Cr+6O6, a new mineral from the Clear Creek Claim, San Benito County, California. Mineralogical Record, 22, 269–272.
Cabri, L.J., Laflamme, J.H.G., Roberts, A.C., Criddle, A.J. and Hulbert, L.J. (1991) Jolliffeite and unnamed CoAsSe: two new arsenoselenides from the north shore of Lake Athabaska, Saskatchewan. Canadian Mineralogist, 29, 411–418.
Dunn, P.J., Grice, J.D., Criddle, A.J. and Stanley, C.J. (1991) Cianciulliite, a new magnesium manganese zinc hydroxide from Franklin, New Jersey. American Mineralogist, 76, 1708–1710.[Abstract][Web of Science][GeoRef]
Shimizu, M., Stanley, C.J., Criddle, A.J., Kato A. and Matsubara, S. (1991) New compositional and optical data for antimonian and bismuthian varieties of hemusite from Japan. Mineralogy and Petrology, 45, 11–17.[CrossRef][Web of Science][GeoRef]
Criddle, A.J., Pearson, P.J., Reeson, K.J., Robinson, A.K., Hemment, P.L.F., Marsh, C.D. and Booker, C.G. (1992) Non-destructive characterization of thin film SIMOX structures using microscope spectrophotometry. Materials Science and Engineering, B12, 185–190.
Bayliss, P., Keqiao, C., Criddle A.J. and Desborough G.A. (1992) Mineral nomenclature: sulrhodite. Mineralogical Magazine, 56, 125–126.[CrossRef][Web of Science][GeoRef]
Francis, C.A., Criddle, A.J., Stanley, C.J., Lange, D.E., Shieh, S. and Francis, J.G. (1992). Buckhornite, AuPb2BiTe2S3, a new mineral from Boulder County, Colorado, and new data for aikinite, tetradymite and calaverite. Canadian Mineralogist, 30, 1039–1047.
Stanley, C.J., Roberts, A.C., Harris, D.C., Criddle, A.J. and Szymanski, J.T. (1992) Cannonite, Bi2O(OH)2SO4, a new mineral from Marysvale, Utah, USA. Mineralogical Magazine, 56, 605–609.[CrossRef][Web of Science][GeoRef]
Criddle, A.J., Tamana, H., Spratt, J., Reeson, K.J., Vaughan, D.J. and Grime, G. (1993) Micro-PIXE analysis of platinum group minerals from placer deposits. Nuclear Instruments and Methods in Physics Research, B77, 444–449.
Wilson, J.R., Sen Gupta, P.K., Robinson, P.D. and Criddle, A.J. (1993) Fangite, Tl3AsS4, a new thallium arsenic sulfosalt from the Mercur Au deposit, Utah, and revised optical data for gillulyite. American Mineralogist, 78, 1096–1103.[Abstract][Web of Science][GeoRef]
Erd, R.C., Roberts, A.C., Bonardi, M., Criddle, A.J., Le Page, Y. and Gabe, E.J. (1993) Edoylerite, Hg32+Cr6+O4S2, a new mineral from the Clear Creek Claim, San Benito County, California. Mineralogical Record, 24, 471–475.
Roberts, A.C., Szymanski, J.T., Erd, R.C., Criddle, A.J. and Bonardi, M. (1993) Deanesmithite, Hg21+Hg32+Cr6+O5S2, a new mineral from the Clear Creek claim, San Benito County, California. Canadian Mineralogist, 31, 787–793.
Shimizu, M., Kato, A., Matsubara, S., Criddle, A.J. and Stanley, C.J. (1993) Watanabeite, Cu4(As,Sb)2S, a new mineral from the Teine mine, Sapporo, Hokkaido, Japan. Mineralogical Magazine, 57, 643–649.[CrossRef][Web of Science][GeoRef]
Symes, R.F., Cressey, G., Criddle, A.J., Stanley, C.J., Francis, J.G. and Jones, G.C. (1994) Parkinsonite, (Pb,Mo,)8O8Cl2, a new mineral from Merehead Quarry, Somerset. Mineralogical Magazine, 58, 59–68.[Abstract][Web of Science][GeoRef]
Geatches, R.M., Reeson, K.J., Criddle, A.J., Webb, R.P., Pearson, P.J., Hemment, P.L.F. and Nejim, A. (1994) Nondestructive characterization of SIMOX structures. Nuclear Instruments and Methods in Physics Research, B84, 258–264.
Tamana, H., Criddle, A.J., Grime, G., Vaughan, D.J. and Spratt, J. (1994) Trace elements in platinum group minerals studied using nuclear microscopy. Nuclear Instruments and Methods in Physics Research, B89, 213–218.
Geatches, R.M., Reeson, K.J., Criddle, A.J., Finney, M.F., Harry, M.H., Webb, R.P. and Pearson, P.J. (1994) Characterization of ion beam synthesized materials using microscope-spectrophotometry. Material Research Society Symposium Proceedings, 316, 813–818.
Roberts, A.C., Ercit, T.S., Criddle, A.J., Jones, G.C., Williams, R.S., Cureton II, F.F. and Jensen, M.C. (1994) Mcalpineite, Cu3TeO.H2O, a new mineral from the McAlpine mine, Tuolumne County, California, and from the Centennial Eureka mine, Juab County, Utah. Mineralogical Magazine, 58, 415–412.
Geatches, R.M., Reeson, K.J., Criddle, A.J. and Webb, R.J. (1994) Characterization of Quantum Well Structures using microscope-spectrophotometry. Materials Research Society Symposium Proceedings, 324, 111–117.
Geatches, R.M., Reeson, K.J., Criddle, A.J., Webb, R.P., Pearson, P.J. and Weiss, B.L. (1994) Microscope spectrophotometric study of GaAs/AlxGa1-xAs MBE structures. Journal of Physics D: Applied Physics, 27, 1528–1532.[CrossRef]
Roberts, A.C., Stirling, J.A.R., Carpenter, G.J.C., Criddle, A.J., Jones, G.C., Birkett, T.C. and Birch, W.D. (1995) Shannonite, Pb2OCO3, a new mineral from the Grand Reef mine, Graham County, Arizona, USA. Mineralogical Magazine, 59, 305–310.[Abstract][Web of Science][GeoRef]
Roberts, A.C., Ercit. T.S., Groat, L.E., Criddle, A.J., Erd, R.C. and Scott Williams, R. (1995) Peterbaylissite, Hg31+(CO3)(OH).2H2O, a new mineral species from the Clear Creek Claim, San Benito County, California. Canadian Mineralogist, 33, 47–53.
Laflamme, J.H.G., Roberts. A.C., Criddle, A.J., and Cabri, L. J. (1995) Owensite, (Ba,Pb)6(Cu,Fe,Ni)25S27, a new mineral species from the Wellgreen Cu-Ni-Pt-Pd deposit, Yukon. Canadian Mineralogist, 33, 665–670.
Roberts, A.C., Grice, J.D., Criddle, A.J., Jensen, M.C., Harris, A. C., and Moffat, E. A. (1995) Frankhawthorneite, Cu22+Te6+O4(OH)2, a new Cu2+ oxysalt mineral with an infinite framework structure, from the Centennial Eureka mine, Juab County, Utah, USA. Canadian Mineralogist, 33, 641–647.
Roberts, A.C., Grice, J.D., Groat, L.A., Criddle, A.J., Gault, R.A., Erd, R.C. and Moffatt, E.A. (1996) Jensenite, Cu3Te6+O6.2H2O, a new mineral species from the Centennial Eureka Mine, Tintic District, Juab County, Utah. Canadian Mineralogist, 34, 49–54.
Roberts, A.C., Grice, J.D., Gault, R.A., Criddle, A.J. and Erd, R. C. (1996) Hanawaltite, Hg61+Hg2+[Cl,(OH)]2O3 – A new mineral from the Clear Creek claim, San Benito County, California: Description and crystal structure. Powder Diffraction, 11, 45–50.
Bermanec, V., Holtstam, D., Strurman, D., Criddle, A.J., Back, M. and Scavnicar, S. (1996) Nezilovite, a new member of the Magnetoplumbite Group, and the crystal chemistry of magnetoplumbite and hibonite. Canadian Mineralogist, 34, 1287–1297.
Clark, A.M., Criddle, A.J., Roberts, A.C., Bonardi, M. and Moffatt, E.A. (1997) Feinglosite, a new mineral related to brackebuschite, from Tsumeb, Namibia. Mineralogical Magazine, 61, 285–289.[Abstract][CrossRef][Web of Science][GeoRef]
Lyon, I.C., Tamana, H., Vaughan, D.J., Criddle, A.J., Saxton, J.M. and van Lierde, P. (1997) Techniques and methodology used in mineralogical and osmium isotope study of platinum group minerals from alluvial deposits in Colombia, California, Oregon and Alaska. Mineralogical Magazine, 61, 367–375.[Abstract][CrossRef][Web of Science][GeoRef]
Roberts, A.C., Gault, R.A., Jensen, M.C., Criddle, A.J. and Moffatt, E. A. (1997) Juabite, Cu5(Te6+O4)2(As5+O4)2.3H2O, a new mineral species from the Centennial Eureka mine, Juab County, Utah. Mineralogical Magazine, 61, 139–144.[Abstract][CrossRef][Web of Science][GeoRef]
Roberts, A.C., Stirling, J.A.R., Criddle, A.J., Jensen, M.C. and Moffat, E.A. (1997) Utahite, Cu5Zn3(Te6+O4)4(OH)8.7H2O, a new mineral from the Centennial Eureka mine, Tintic district, Juab County, Utah. Mineralogical Record, 28, 175–179.
Welch, M.D. Criddle, A.J. and Symes, R.F. (1998) Mereheadite, Pb2O(OH)Cl; a new litharge-related oxychloride from Merehead Quarry, Cranmore, Somerset. Mineralogical Magazine, 62, 387–393.[Abstract][CrossRef][Web of Science][GeoRef]
Grey, I.E. Velde, D. and Criddle, A.J. (1998) Haggertyite, a new magnetoplumbite-type titanate mineral from the Prairie Creek (Arkansas) lamproite. American Mineralogist, 83, 1323–1329.[Abstract][Web of Science][GeoRef]
Bykova, E.Y., Berlepsch, P., Kartashov, P.M. and Criddle, A. J. (1998) Vergasovaite, Cu3O[(Mo,S)O4][SO4], a new copper-oxy-molyb-date-sulfate from Kamchatka. Schweizerische Mineralogische und Petrographische Mitteilungen, 78, 479–488.
Paar, W.H., Roberts, A.C. and Criddle, A.J. (1998) A new mineral, chrisstanleyite, Ag2Pd3Se4 from Hope’s Nose, Torquay, Devon, England. Mineralogical Magazine, 62, 257–264.[Abstract][CrossRef][Web of Science][GeoRef]
Pring, A., Grguric, B.A., and Criddle, A.J. (1998) Lindstromite from Cobalt, Ontario. Canadian Mineralogist, 36, 1139–1148.
Back, M.E., Grice, J.D., Gault, R.A., Criddle, A.J. and Mandarino, J.A. (1999) Walfordite, a new tellurite species from the Wendy open pit, El Indio-Tambo mining property, Chile. Canadian Mineralogist, 37, 1261–1268.
Barkov, A.Y., Halkoaho, T.A.A., Roberts, A.C., Criddle, A.J., Martin, R.F. and Papunen, H. (1999) New Pd-Pb and Pb-V oxides from a bonanza-type PGE-rich, nearly BMS-free deposit in the Penikat layered complex, Finland. Canadian Mineralogist, 37, 1507–1524.
Roberts, A.C., Cooper, M.A., Hawthorne, F.C., Criddle, A.J. Stanley, C.J., Key C.L. and Jambor, J.L. (1999) Sidpietersite, Pb4(SO3S)O2(OH)2,, a new thiosulphate-bearing mineral species from Tsumeb, Namibia. Canadian Mineralogist, 37, 1271–1276.
Paar, W.H., Miletich, R., Topa, D., Criddle, A.J., Brodtkorb, M.k., Anthauer, G. and Tippelt, G. (2000) Suredaite, PbSnS3, a new mineral species, from the Pirquitas Ag-Sn deposit, NW-Argentina; mineralogy and crystal structure. American Mineralogist, 85, 1066–1075.
Burns, P.C., Roberts, A.C., Stirling, J.A.R., Criddle, A.J. and Feinglos, M. (2000) Dukeite, Bi3+24Cr6+8O57(OH)6(H2O)3, a new mineral from Brejauba, Minas Gerais, Brazil; description and crystal structure. American Mineralogist, 85, 1822–1827.
Welch, M.D., Cooper, M.A., Hawthorne, F.C. and Criddle, A.J. (2000) Symesite, Pb10(SO4)O7Cl4.H2O, a new PbO-related sheet mineral; description and crystal structure. American Mineralogist, 85, 1526–1533.
Roberts, A.C., Burns, P.C., Gault, R.A., Criddle, A.J., Feinglos, M.N. and Stirling, J.A.R. (2001) Paganoite, NiBi3+As5+O5,a new mineral from Johanngeorgenstadt, Saxony, Germany; description and crystal structure. European Journal of Mineralogy, 13, 167–175.
Brugger, J., Armbruster, T., Criddle, A.J., Berlepsch, P., Graeser, S. and Reeves, S. (2001) Description, crystal structure, and paragenesis of krettnichite, PbMn3+2(VO4)2(OH)2, the Mn3+ analogue of mounanaite. European Journal of Mineralogy, 13, 145–158.
Effenberger, H., Paar, W.H., Topa, D., Criddle, A.J. and Fleck, M. (2002) The new mineral baumstarkite and a structural reinvestigation of aramayoite and miargyrite. American Mineralogist, 87, 753–764.
Barkov, A.Y., Martin, R.F., Halkoaho, T.A.A. and Criddle, A.J. (2002) Laflammeite, Pd3Pb2S2 a new platinum-group mineral species from the Penikat layered complex, Finland. Canadian Mineralogist, 40, 671–678.
Paar, W.H., Topa, D., Roberts, A.C., Criddle, A.J., Amann, G. and Sureda, R.J. (2002) The new mineral species brodtkorbite, Cu2HgSe2 and the associated selenide assemblage from Turminico, Sierra de Cacho, La Rioja, Argentina. Canadian Mineralogist, 40, 225–238.
Roberts, A.C., Cooper, M.A., Hawthorne, F.C., Criddle, A.J. and Stirling, J.A.R. (2002) Sewardite, CaFe3+2(AsO4)2(OH)2, the Ca-analogue of carminite, from Tsumeb, Namibia; description and crystal structure. Canadian Mineralogist, 40, 1191–1198.
Roberts, A.C., Paar, W.H., Cooper, M.A., Topa, D., Criddle, A.J. and Jedwab, J. (2002) Verbeekite, monoclinic PdSe2 a new mineral from the Musonoi Cu-Co-Mn-U mine, near Kolwezi, Shaba province, Democratic Republic of Congo. Mineralogical Magazine, 66, 173–179.
Roberts, A.C., Cooper, M.A., Hawthorne, F.C., Criddle, A.J., Stirling, J.A.R. and Dunning, G.E. (2002) Tedhadleyite, Hg2+Hg1+10O4I2(Cl,Br)2, a new mineral species from the Clear Creek Claim, San Benito County, California. Canadian Mineralogist, 40, 909–914.
Kwitko, A.R., Cabral, A.R., Lehmann, B., Laflamme, J.H.G., Cabri, L.J., Criddle, A.J. and Galbiatti, H.F. (2002) Hongshiite, PtCu, from Itabirite-hosted Au-Pd-Pt mineralisation (jacutinga), Itabira district, Minas Gerais, Brazil. Canadian Mineralogist, 40, 711–723.
Stanley, C.J., Criddle, A.J., Foerster, H.-J. and Roberts, A.C. (2002) Tischendorfite, Pd8Hg3Se9, a new mineral from Tilkerode, Harz Mountains, Germany. Canadian Mineralogist 40, 739–745.
Berlepsch, P., Armbruster, T., Brugger, J. and Criddle, A.J. (2003) Tripuhyite, FeSbO4, revisited. Mineralogical Magazine, 67, 31–46.
Foerster, H.-J., Cooper, M.A., Roberts, A.C., Stanley, C.J., Criddle, A.J., Hawthorne, F.C., Laflamme, J.H.G. and Tischendorf, G. (2004) Schlemaite, (Cu,
)6(Pb,Bi)Se4 a new mineral species from Niederschlema-Alberoda, Erzgebirge, Germany: Description and Crystal Structure. Canadian Mineralogist (in press).
Roberts, A.C., Burns, P.C., Gault, R.A., Criddle, A.J. and Feinglos, M.N. (2004) Aurivilliusite, Hg2+Hg1+OI, a new mineral species from the Clear Creek claim, San Benito County, California, U.S.A. Mineralogical Magazine 68, 241–245.
Roberts, A.C., Burns, P.C., Gault, R.A., Criddle, A.J. and Feinglos, M.N. (2004) Petewilliamsite, (Ni,Co) 30 (As2O7)15, a new mineral from Johanngeorgenstadt, Saxony, Germany: description and crystal structure. Mineralogical Magazine, 68, 231–240.
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