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Arseniosiderite Mineral Data + |
General Arseniosiderite Information |
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| Ca2Fe+++3(AsO4)3O2·3(H2O) | |||
| Molecular Weight = 766.50 gm | |||
| Calcium 10.46 % Ca 14.63 % CaO | |||
| Iron 21.86 % Fe 31.25 % Fe2O3 | |||
| Arsenic 29.32 % As 44.98 % As2O5 | |||
| Hydrogen 0.79 % H 7.05 % H2O | |||
| Oxygen 37.57 % O | |||
| ______ ______ | |||
| 100.00 % 97.91 % = TOTAL OXIDE | |||
| Ca2Fe3+3(AsO4)3O3·3(H2O) | |||
| Occurs as a rare secondary mineral formed by the oxidation of earlier arsenic-bearing minerals, typically scorodite or arsenopyrite. | |||
| Valid Species (Pre-IMA) 1842 | |||
| From Romaneche, Saone-et-Loire, France. At Huttenberg, Carinthia, Austria. In Germany, at Schneeberg, Saxony, and at Wittichen and Neubulach, Black Forest. Link to MinDat.org Location Data. | |||
| For essential "arsenic" in the composition, and "sideros," Greek for "iron." | |||
Arseniosiderite Image | |||
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Arseniosiderite Crystallography |
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| a:b:c =0.9093:1:0.5785 | |||
| a = 17.76, b = 19.53, c = 11.3, Z = 12; beta = 96° V = 3,897.97 Den(Calc)= 3.92 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a | |||
| By Intensity(I/Io): 8.84(1), 2.772(0.8), 5.62(0.5), | |||
Physical Properties of Arseniosiderite |
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| [100] Good | |||
| Bronze brown, Yellow, Yellow brown, Dark brown, Black. | |||
| 3.5 - 3.9, Average = 3.7 | |||
| Translucent to Opaque | |||
| Fibrous - Crystals made up of fibers. | |||
| 1.5 - Between Talc and Gypsum | |||
| Non-fluorescent. | |||
| Sub Metallic | |||
| ochraceous | |||
Optical Properties of Arseniosiderite |
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| CI meas= -0.041 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.222,KPDmeas= 0.2352,KC= 0.226 |
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| Biaxial (-), a=1.815, b=1.898, g=1.898, bire=0.0830 | |||
Calculated Properties of Arseniosiderite |
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relectron=3.75 gm/cc |
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| Fermion Index = 0.00495 Boson Index = 0.99505 |
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PEArseniosiderite = 27.84 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Arseniosiderite is Not Radioactive |
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Arseniosiderite Classification |
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| 42.8.4.3 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | |||
| (42.8)where (AB)7 (XO4)4 Zq · x(H2O) | |||
| (42.8.4)Dana Group | |||
| VII/D.30-40 VII - Phosphates, Arsenates and Vanadates | |||
| VII/D - Water-bearing phosphates with unfamiliar anions, cations of very big and medium size: Al, Mg and Ca, Na, K | |||
| VII/D.30 - Mitridatite series | |||
Other Arseniosiderite Information |
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| NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Arseniosiderite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 - Franklin Minerals(Dunn) 6 - Franklin Minerals(Palache) 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 -École des Mines de Paris Search for Arseniosiderite using: Visit our Advertisers for Arseniosiderite : Translate Arseniosiderite Mineral Data : Ask about Arseniosiderite here : Print or Cut-and-Paste your Arseniosiderite Specimen Label here :
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