| Chenevixite Mineral Data |
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- 42.7.10.1 Chenevixite Cu2Fe2(AsO4)2(OH)4·(H2O) P 21/m 2/m
- 42.7.10.2 Luetheite Cu2Al2(AsO4)2(OH)4·(H2O) P 21/m 2/m
- VII/D.16-10 Luetheite Cu2Al2(AsO4)2(OH)4·(H2O) P 21/m 2/m
- VII/D.16-20 Chenevixite Cu2Fe2(AsO4)2(OH)4·(H2O) P 21/m 2/m
- VII/D.16-30 Akrochordite Mn4Mg(AsO4)2(OH)4·4(H2O) P 21/c 2/m
General Chenevixite Information |
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 Chemical Formula: |
Cu2Fe+++2(AsO4)2(OH)4·(H2O) | ||
| Composition: |
Molecular Weight = 602.67 gm | ||
| Iron 18.53 % Fe 26.50 % Fe2O3 | |||
| Copper 21.09 % Cu 26.40 % CuO | |||
| Arsenic 24.86 % As 38.14 % As2O5 | |||
| Hydrogen 1.00 % H 8.97 % H2O | |||
| Oxygen 34.51 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Cu2Fe3+2(AsO4)2(OH)4·(H2O) | ||
| IMA Status: |
Valid Species (Pre-IMA) 1866 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
Chenevixite Image | |||
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Images:
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Chenevixite Crystallography |
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| Axial Ratios: |
a:b:c =2.8918:1:1.1031 | ||
| Cell Dimensions: |
a = 15.006, b = 5.189, c = 5.724, Z = 2; beta = 102.25° V = 435.56 Den(Calc)= 4.59 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.56(1), 2.553(0.7), 3.82(0.5), | ||
Physical Properties of Chenevixite |
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| Cleavage: |
None | ||
| Color: |
Yellow green, Dark green, Olive green. | ||
| Density: |
3.9 | ||
| Diaphaniety: |
Subtranslucent | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Habit: |
Compact - Occurs as a compact mass. | ||
| Habit: |
Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye. | ||
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. | ||
| Hardness: |
4 - Fluorite | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Greasy (Oily) | ||
| Streak: |
greenish yellow | ||
Optical Properties of Chenevixite |
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| Gladstone-Dale: |
CI meas= -0.131 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.039 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2121,KPDmeas= 0.2496,KC= 0.2206 |
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| Optical Data: |
Biaxial (+), a=1.92, b=1.96, g=2.04, bire=0.1200 | ||
Calculated Properties of Chenevixite |
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| Electron Density: |
relectron=4.36 gm/cc |
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| Fermion Index |
Fermion Index = 0.00409 Boson Index = 0.99591 |
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| Photoelectric: |
PEChenevixite = 32.02 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chenevixite is Not Radioactive |
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Chenevixite Classification |
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| Dana Class: |
42.7.10.1 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | ||
| (42.7)where (AB)5 (XO4)3 Zq · x(H2O) | |||
| (42.7.10)Dana Group | |||
| Strunz Class: |
VII/D.16-20 VII - Phosphates, Arsenates and Vanadates | ||
| VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe | |||
| VII/D.16 - Luetheite - Akrochordite series | |||
Other Chenevixite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Chenevixite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 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 -École des Mines de Paris Search for Chenevixite using: Visit our Advertisers for Chenevixite : Translate Chenevixite Mineral Data : Ask about Chenevixite here : Print or Cut-and-Paste your Chenevixite Specimen Label here :
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