Hentschelite Mineral Data + 
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- 41.10.1.1 Lazulite MgAl2(PO4)2(OH)2 P 21/c 2/m
- 41.10.1.2 Scorzalite (Fe,Mg)Al2(PO4)2(OH)2 P 2/c 2/m
- 41.10.1.3 Hentschelite CuFe2(PO4)2(OH)2 P 21/n 2/m
- 41.10.1.4 Barbosalite FeFe2(PO4)2(OH)2 P 21/c 2/m
- VII/B.08-10 Trolleite Al4(PO4)3(OH)3 I2/c 2/m
- VII/B.08-20 Lazulite MgAl2(PO4)2(OH)2 P 21/c 2/m
- VII/B.08-30 Scorzalite (Fe,Mg)Al2(PO4)2(OH)2 P 2/c 2/m
- VII/B.08-40 Barbosalite FeFe2(PO4)2(OH)2 P 21/c 2/m
- VII/B.08-50 Hentschelite CuFe2(PO4)2(OH)2 P 21/n 2/m
- VII/B.08-55 Wilhelmkleinite! ZnFe3(AsO4)2(OH)2 P 21/n 2/m
- VII/B.08-60 Lipscombite (Fe,Mn)Fe2(PO4)2(OH)2 P 41212 4 2 2
- VII/B.08-70 Richellite Ca3Fe10(PO4)8(OH)12·n(H2O) P 4 4
General Hentschelite Information |
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 Chemical Formula: |
Cu++Fe+++2(PO4)2(OH)2 | ||
| Composition: |
Molecular Weight = 399.20 gm | ||
| Iron 27.98 % Fe 40.00 % Fe2O3 | |||
| Copper 15.92 % Cu 19.93 % CuO | |||
| Phosphorus 15.52 % P 35.56 % P2O5 | |||
| Hydrogen 0.50 % H 4.51 % H2O | |||
| Oxygen 40.08 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CuFe3+2(PO4)2(OH)2 | ||
| IMA Status: |
Approved IMA 1987 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
Andrewsite | ||
| ICSD 62242 | |||
| PDF 40-501 | |||
Hentschelite Image | |||
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Images:
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Hentschelite Crystallography |
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| Axial Ratios: |
a:b:c =0.8969:1:0.9332 | ||
| Cell Dimensions: |
a = 6.984, b = 7.786, c = 7.266, Z = 2; beta = 117.68° V = 349.89 Den(Calc)= 3.79 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.33(1), 3.27(0.5), 4.81(0.5), | ||
Physical Properties of Hentschelite |
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| Cleavage: |
None | ||
| Color: |
Dark green. | ||
| Density: |
3.79 | ||
| Diaphaniety: |
Translucent | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
light green | ||
Optical Properties of Hentschelite |
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| Gladstone-Dale: |
CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.035 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2318,KPDmeas= 0.2318,KC= 0.2403 |
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| Optical Data: |
Biaxial (+), a=1.843, b=1.848, g=1.945, bire=0.1020, 2V(Calc)=28, 2V(Meas)=60-70. | ||
Calculated Properties of Hentschelite |
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| Electron Density: |
relectron=3.66 gm/cc |
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| Fermion Index |
Fermion Index = 0.00612 Boson Index = 0.99388 |
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| Photoelectric: |
PEHentschelite = 16.12 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hentschelite is Not Radioactive |
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Hentschelite Classification |
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| Dana Class: |
41.10.1.3 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.10)where (A++ B++)3 (XO4)2 Zq | |||
| (41.10.1)Dana Group | |||
| Strunz Class: |
VII/B.08-50 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.08 - Lazulite group, Trolleite - Richellite | |||
Other Hentschelite Information |
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| References: |
PHYS. PROP.(Am.Min.,Vol.72,p404-408,1987) OPTIC PROP.(Am.Min.,Vol.72,p404-408,1987) | ||
| See Also: |
Links to other databases for Hentschelite : 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 - WWW-MINCRYST 14 -École des Mines de Paris Search for Hentschelite using: Visit our Advertisers for Hentschelite : Translate Hentschelite Mineral Data : Ask about Hentschelite here : Print or Cut-and-Paste your Hentschelite Specimen Label here :
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