[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store] See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM] Rare Minerals, Meteorites, Equipment and Analytical Services Excalibur Mineral Company, World leaders in the supply of rare species Serving the scientific and collector communities since 1974 General Hentschelite InformationCu++Fe+++2(PO4)2(OH)2 |
Molecular Weight = 399.20 gm |
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Iron 27.98 % Fe 40.00 % Fe2O3 |
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Copper 15.92 % Cu 19.93 % CuO |
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Phosphorus 15.52 % P 35.56 % P2O5 |
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Hydrogen 0.50 % H 4.51 % H2O |
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Oxygen 40.08 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
CuFe3+2(PO4)2(OH)2 |
Secondary mineral in some oxidized copper deposits. |
Approved IMA 1987 |
Reichenbach, near Bensheim, Hesse, Germany. Link to MinDat.org Location Data. |
Named for Gerhard Hentschel (1930- ), Geological Survey of Hesse, Wiesbaden, Germany. |
Hentschelite + Pronunciation |
Andrewsite |
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ICSD 62242 |
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PDF 40-501 |
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Hentschelite Crystallographya:b:c =0.8969:1:0.9332 |
a = 6.984, b = 7.786, c = 7.266, Z = 2; beta = 117.68° V = 349.89 Den(Calc)= 3.79 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n |
By Intensity(I/Io): 3.33(1), 3.27(0.5), 4.81(0.5), |
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| Physical Properties of HentscheliteNone |
Dark green. |
3.79 |
Translucent |
3.5 - Copper Penny |
Vitreous (Glassy) |
light green |
| Optical Properties of HentscheliteCI 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 Ncalc = 1.91 Biaxial (+), a=1.843, b=1.848, g=1.945, bire=0.1020, 2V(Calc)=28, 2V(Meas)=60-70. |
| Calculated Properties of HentscheliteBulk Density (Electron Density)=3.66 gm/cc |
note: Specific Gravity of Hentschelite =3.79 gm/cc. Fermion Index = 0.0061248201 |
Boson Index = 0.9938751799 PEHentschelite = 16.12 barns/electron |
U=PEHentschelite x rElectron Density= 59.08 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Hentschelite is Not Radioactive | Hentschelite Classification41.10.01.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
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(41.10)where (A++ B++)3 (XO4)2 Zq |
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(41.10.01)Lazulite Group |
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08.BB.40 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1 |
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| Other Hentschelite InformationNAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.72,p404-408,1987) OPTIC PROP.(Am.Min.,Vol.72,p404-408,1987) |
Links to other databases for Hentschelite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Hentschelite using: Visit our Advertisers for Hentschelite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Hentschelite Mineral Data : Ask about Hentschelite here : Print or Cut-and-Paste your Hentschelite Specimen Label here :
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