General Benauite Information![]() HSrFe+++3(PO4)2(OH)6 |
![]() Molecular Weight = 603.13 gm |
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Barium 4.55 % Ba 5.08 % BaO |
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Strontium 10.17 % Sr 12.03 % SrO |
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Iron 26.85 % Fe 38.39 % Fe2O3 |
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Phosphorus 7.70 % P 17.65 % P2O5 |
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Hydrogen 1.39 % H 12.40 % H2O |
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Lead 3.44 % Pb 3.70 % PbO |
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Sulfur 2.66 % S 6.64 % SO3 |
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Oxygen 43.24 % O |
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100.00 % 95.89 % = TOTAL OXIDE |
![]() Sr0.7Ba0.2Pb0.1Fe3+2.9(PO4)1.5(SO4)0.5(OH)8.3 |
![]() Occurs as a secondary mineral in the oxidized zone of a hydrothermal polymetallic barite-fluorite deposit. |
![]() Approved IMA 1995 (Dana # Added) |
![]() From the Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data. |
![]() For the Benauer Berg, Germany, near which the Clara mine is situated. |
![]() Benauite |
![]() ![]() IMA1995-001 |
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Lusungite |
| | Search for Benauite Images
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| | Benauite Crystallography![]() a:c = 1:2.31456 |
![]() a = 7.28, c = 16.85, Z = 3; V = 773.38 Den(Calc)= 3.88 |
![]() Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
![]() By Intensity(I/Io): 5.88(1)(101), 3.06(0.9)(113), 2.25(0.6)(107),3.65(0.6), 1.82(0.5)(118,220,216), 1.969(0.5)(303), 2.53(0.5)(204), 2.81(0.5)(006), 2.96(0.5)(105,202), |
| Physical Properties of Benauite![]() {001} Perfect |
![]() Yellow, Brown. |
![]() 3.65 |
![]() Transparent to Translucent |
![]() Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
![]() Aggregates - Made of numerous individual crystals or clusters. |
![]() Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
![]() 3.5 - Copper Penny |
![]() Vitreous - Resinous |
![]() pale yellow |
| Optical Properties of Benauite![]() CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.053 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2235,KPDmeas= 0.2375,KC= 0.236 Ncalc = 1.86 - 1.92 ![]() Uniaxial (-), e=1.862, w=1.872, bire=0.0100. |
| Calculated Properties of Benauite![]() Bulk Density (Electron Density)=3.52 gm/cc |
note: Specific Gravity of Benauite =3.65 gm/cc. ![]() Fermion Index = 0.02 |
Boson Index = 0.98 ![]() PEBenauite = 93.53 barns/electron |
U=PEBenauite x rElectron Density= 328.98 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Benauite is Not Radioactive | Benauite Classification![]() 42.07.03.07 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.07)where (AB)5 (XO4)3 Zq · x(H2O) |
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(42.07.03)Crandallite Group |
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![]() 08.BL.10 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1 |
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| Other Benauite Information![]() NAME( AntBidBlaNic4) PHYS. PROP.(Eur. J. Min.,Vol.8,1996) OPTIC PROP.(Eur. J. Min.,Vol.8,1996) |
![]() Links to other databases for Benauite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Benauite using: Visit our Advertisers for Benauite : A Bijoux Google Search for BenauiteAdam's Minerals Google Search for Benauite Cape Minerals Google Search for Benauite Dakota Matrix Minerals Google Search for Benauite Excalibur Mineral Corp. Google Search for Benauite Exceptional Minerals Google Search for Benauite John Betts Fine Minerals Search for Benauite McDougall Minerals Google Search for Benauite Mineral News Website Link Rock and Mineral Shows Google Search for Benauite Weinrich Minerals, Inc. Google Search for Benauite Ask about Benauite here : Print or Cut-and-Paste your Benauite Specimen Label here :
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