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Eveite Mineral Data + |
General Eveite Information |
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| Mn2(AsO4)(OH) | |||
| Molecular Weight = 265.80 gm | |||
| Manganese 41.34 % Mn 53.38 % MnO | |||
| Arsenic 28.19 % As 43.24 % As2O5 | |||
| Hydrogen 0.38 % H 3.39 % H2O | |||
| Oxygen 30.10 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+2(AsO4)(OH) | |||
| Dimorphous with sarkinite. Secondary mineral found encrusting cavities in deposits containing Fe-Mn oxides and carbonates. | |||
| Approved IMA 1967 | |||
| Langban, Varmland, Sweden. Link to MinDat.org Location Data. | |||
| Named for its structural and chemical simularities to adamite. | |||
| ICSD 38426 | |||
| PDF 22-1166 | |||
Eveite Image | |||
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Eveite Crystallography |
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| a:b:c =0.9771:1:0.7149 | |||
| a = 8.57, b = 8.77, c = 6.27, Z = 4; V = 471.25 Den(Calc)= 3.75 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm | |||
| By Intensity(I/Io): 4.39(1), 3.058(0.9), 5.09(0.8), | |||
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Physical Properties of Eveite |
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| [101] Good | |||
| Apple green. | |||
| 3.76 | |||
| Transparent to Translucent | |||
| 4 - Fluorite | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Eveite |
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| CI meas= -0.019 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1908,KPDmeas= 0.1903,KC= 0.1867 |
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| Biaxial (+), a=1.7, b=1.715, g=1.732, bire=0.0320, 2V(Calc)=88, 2V(Meas)=65. | |||
Calculated Properties of Eveite |
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relectron=3.51 gm/cc |
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| Fermion Index = 0.00014 Boson Index = 0.99986 |
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PEEveite = 30.49 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Eveite is Not Radioactive |
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Eveite Classification |
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| 41.6.6.4 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | |||
| (41.6)where (A)2 (XO4) Zq | |||
| (41.6.6)Dana Group | |||
| VII/B.06-40 VII - Phosphates, Arsenates and Vanadates | |||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds | |||
| VII/B.06 - Adamite group, Libethenite - Paradamite | |||
Other Eveite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Eveite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Eveite using: Visit our Advertisers for Eveite : Translate Eveite Mineral Data : Ask about Eveite here : Print or Cut-and-Paste your Eveite Specimen Label here :
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