General Mahnertite Information![]() (Na,Ca)Cu++3(AsO4)2Cl•5(H2O) |
![]() Molecular Weight = 565.01 gm |
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Sodium 3.58 % Na 4.83 % Na2O |
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Calcium 0.85 % Ca 1.19 % CaO |
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Copper 30.93 % Cu 38.72 % CuO |
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Arsenic 26.52 % As 40.68 % As2O5 |
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Hydrogen 1.30 % H 11.57 % H2O |
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Chlorine 3.89 % Cl 3.89 % Cl |
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- %
Cl -0.88 % -O=Cl2 |
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Oxygen 32.93 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Na0.88Ca0.12Cu2.75(AsO4)2Cl0.62•3.63(H2O) |
![]() Found in a zone of secondary alteration. Polytype of zdenekite. |
![]() Approved IMA 1995 (Dana # Added) |
![]() Cap Garonne mine, Var, France. Link to MinDat.org Location Data. |
![]() Named after Volker Mahnert (b. 1943), zoologist, director of the Museum d’Histoire Naturelle, Geneva, Switzerland. |
![]() Mahnertite + Pronunciation |
![]() ![]() IMA1994-035 |
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Mahnertite Crystallography![]() a:c = 1:2.36512 |
![]() a = 10.0371, c = 23.739, Z = 8; V = 2,391.55 Den(Calc)= 3.14 |
![]() Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: I 4mmm |
![]() By Intensity(I/Io): 11.9(1), 3.098(0.8), 3.061(0.7), |
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| Physical Properties of Mahnertite![]() Blue, Emerald green. |
![]() 3.14 |
![]() Translucent |
![]() 2-3 - Gypsum-Calcite |
![]() Vitreous (Glassy) |
| Optical Properties of Mahnertite![]() CI meas= -0.079 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.079 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2104,KPDmeas= 0.2104,KC= 0.195 Ncalc = 1.61 ![]() Uniaxial (-), e=1.635, w=1.686, bire=0.0510. |
| Calculated Properties of Mahnertite![]() Bulk Density (Electron Density)=2.99 gm/cc |
note: Specific Gravity of Mahnertite =3.14 gm/cc. ![]() Fermion Index = 0.0001715119 |
Boson Index = 0.9998284881 ![]() PEMahnertite = 32.21 barns/electron |
U=PEMahnertite x rElectron Density= 96.19 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Mahnertite is Not Radioactive | Mahnertite Classification![]() 42.09.04.04 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.09)where (A)3 (XO4)2 Zq · x(H2O) |
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(42.09.04)Dana Group |
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![]() 08.DH.45 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1 |
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| Other Mahnertite Information![]() NAME( CanMin, 8/99) PHYS. PROP.(Am.Min, 82:1262, 90:772) OPTIC PROP.(Am.Min.,Vol.82,p1262,1997) |
![]() Links to other databases for Mahnertite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - GeoScienceWorld 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Mahnertite using: Visit our Advertisers for Mahnertite : A Bijoux Google Search for MahnertiteAdam's Minerals Google Search for Mahnertite Cape Minerals Google Search for Mahnertite Dakota Matrix Minerals Google Search for Mahnertite Excalibur Mineral Corp. Google Search for Mahnertite Exceptional Minerals Google Search for Mahnertite John Betts Fine Minerals Search for Mahnertite McDougall Minerals Google Search for Mahnertite Mineral News Website Link Rock and Mineral Shows Google Search for Mahnertite Weinrich Minerals, Inc. Google Search for Mahnertite Ask about Mahnertite here : Print or Cut-and-Paste your Mahnertite Specimen Label here :
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