砷釔銅石(英語:Agardite[1]是由砷釔銅石-(Y)[2],砷釔銅石-(Ce)[3],砷釔銅石-(Nd)、[4]和砷釔銅石-(La)組成的礦物組。[5],是含稀土元素(REE)和銅的水合砷酸鹽,化學式為(REE,Ca)Cu6(AsO4)3(OH)6•3H2O,結構中亦含釔、鈰、釹、鑭以及微量其他稀土元素。砷釔銅石-(Y)分佈最多,屬六方晶系,呈針狀黃綠色晶體。砷釔銅石礦物是砷鉍銅石(mixite )結構族的一員,其化學通式為Cu2+6A(TO4)3(OH)6•3H2O,其中A為稀土元素、Al、Ca、Pb或Bi,T為P 或As。除了四種砷釔銅石礦物外,砷鉍銅石(mixite)礦物組的其他成員是磷鈣銅石(calcipotersite)[6],砷釔鋁銅石(goudeyite),petersite-(Ce)[7], petersite-(Y)[8], plumboagardite[9] 和扎水羥砷銅石(zálesíite)[10]

砷釔銅石-(Y), 砷釔銅石-(Ce), 砷釔銅石-(Nd), agardite-(La)
砷釔銅石-(Ce)樣本
基本資料
類別砷酸鹽礦物
化學式(REE,Ca)Cu6(AsO4)3(OH)6•3H2O
戴納礦物分類(Y): 42.05.01.02
(Ce): 42.05.01.02e
(Nd): 42.05.01.02b
(La): 42.05.01.02a
晶體分類Dipyramidal (6/m)
(H–M記號相同)
晶體空間群P63/m
(agardite-(La): unknown space group)
晶胞a = 13.59, c = 5.89 [Å], Z = 2
性質
顏色藍色-綠色至黃色-綠色
晶體慣態晶體針狀、六方柱狀,
晶系六方晶系
解理
斷口貝狀斷口
莫氏硬度3–4
光澤玻璃光澤
條痕綠白色
比重3.7
折射率nω = 1.725, nε = 1.81
雙折射0.085
多色性黃綠色

發現

編輯

砷釔銅石是在摩洛哥Djebel Sarhro的Bou Skour礦中被發現的第一個砷釔銅石族礦物。[11]。1969年Dietrich以法國地質學家Jules Agard的名字命名。[12]

產地

編輯

已知產地包括德國[13], 捷克共和國[14], 希臘[15],意大利[16], 日本[17], 納米比亞[18], 波蘭[19], 西班牙[20], 瑞士[21],英國、[22] 和美國 [23]等地。

參考文獻

編輯
  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Dietrich J. E., Orliac M., Permingeat F. (1969) L』agardite, une nouvelle espèce minérale, et le problème du chlorotile, Bulletin de la Société Française de Minéralogie et de Cristallographie 92, 420–434.
  3. ^ Walenta K., Theye T. (2004) Agardite-(Ce) of the Clara mine in the central Black Forest, Aufschluss 55, 17–23.
  4. ^ ekov I. V., Chukanov N. V., Zadov A. E., Voudouris P., Magganas A., Katerinopoulos A. (2011) Agardite-(Nd), NdCu6(AsO4)3(OH)6•3H2O, from the Hilarion Mine, Lavrion, Greece: mineral description and chemical relations with other members of the agardite-zálesíite solid-solution system, Journal of Geosciences 57, 249–255.
  5. ^ Fehr T., Hochleitner R. (1984) Agardite-La. Ein neues mineral von Lavrion, Griechenland, Lapis 9, 22–37.
  6. ^ Sejkora J., Novotný P., Novák M., Šrein V., Berlepsch P. (2005) Calciopetersite from Domašov nad Bystricí, Northern Moravia, Czech Republic, a new mineral species of the mixite group, The Canadian Mineralogist 43, 1393–1400.
  7. ^ Williams P. A., Hatert F., Pasero M., Mills S. J. (2014) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 20. New minerals and nomenclature modifications approved in 2014. Mineralogical Magazine 78, 549–558.
  8. ^ Peacor D. R., Dunn P. J. (1982) Petersite, a REE and phosphate analog of mixite, American Mineralogist 67, 1039–1042.
  9. ^ Walenta K., Theye T. (2005) Plumboagardite, a new mineral of the mixite group from an occurrence in the Southern Black Forest, Neues Jahrbuch für Mineralogie, Abhandlungen 181, 219–224.
  10. ^ Sejkora J., Rídkošil T., Šrein V. (1999) Zálesíite, a new mineral of the mixite group, from Zálesí, Rychlebské hory Mts., Czech Republic, Neues Jahrbuch für Mineralogie, Abhandlungen 175, 105–124.
  11. ^ Dietrich J. E., Orliac M., Permingeat F. (1969) L』agardite, une nouvelle espèce minérale, et le problème du chlorotile, Bulletin de la Société Française de Minéralogie et de Cristallographie, 92, 420–434.
  12. ^ Anthony J. W., Bideaux R. A., Bladh K. W., and Nichols M. C. (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America.
  13. ^ K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992.
  14. ^ Sejkora J., Pauliš P., Kopista J.: Agardit-(Y) z ložiska Sn-W Cínovec v Krušných horách (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2011, 19, 1, 64–68.
  15. ^ LAPIS 24 (7/8) 1999; Wendel, W. and Markl, G. (1999) Lavrion: Mineralogische Klassiker und Raritäten für Sammler. LAPIS 24 (7/8): 34–52.
  16. ^ Palenzona, A., Armellino, G., Bulgarelli, G. (1994): Le agarditi della Liguria. Rivista Mineralogica Italiana, 4/1994, 354–356.
  17. ^ Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000.
  18. ^ Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany.
  19. ^ Siuda R., K. Gal-Solymos, Kruszewski L., 2006: Agardite-(La)-duftite and scorodite-köttigite-like mineral paragenesis from supergenic zone of the Miedzianka deposit (Rudawy Janowickie Mts., Poland) – preliminary report. Mineralogia Polonica Special Papers, 29, 192–195.
  20. ^ Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000.
  21. ^ Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 24.
  22. ^ Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications.
  23. ^ Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 323.