General Philipsbornite Information![]() PbAl3(AsO4)2(OH)5•(H2O) |
![]() Molecular Weight = 669.04 gm |
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Aluminum 12.10 % Al 22.86 % Al2O3 |
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Arsenic 22.40 % As 34.35 % As2O5 |
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Hydrogen 1.05 % H 9.42 % H2O |
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Lead 30.97 % Pb 33.36 % PbO |
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Oxygen 33.48 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() PbAl3(AsO4)2(OH)5•(H2O) |
![]() Associated with crocoite. |
![]() Approved IMA 1982 |
![]() Dundas district, TAS, Australia. Link to MinDat.org Location Data. |
![]() Named for Helut von Philipsborn (1892-1983), Mineralogist, University of Bonn, Germany. |
![]() Philipsbornite + Pronunciation |
![]() | | Philipsbornite Image
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Philipsbornite Crystallography![]() a:c = 1:2.39803 |
![]() a = 7.11, c = 17.05, Z = 3; V = 746.44 Den(Calc)= 4.46 |
![]() TrigonalSpace Group: R 3m-,R 3m |
![]() By Intensity(I/Io): 3.02(1), 5.82(0.9), 3.56(0.8), |
| Physical Properties of Philipsbornite![]() None |
![]() Colorless, Gray green. |
![]() 4.33 |
![]() Transparent |
![]() Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
![]() Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
![]() Massive - Uniformly indistinguishable crystals forming large masses. |
![]() 4.5 - Between Fluorite and Apatite |
![]() Vitreous (Glassy) |
| Optical Properties of Philipsbornite![]() CI meas= -0.017 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1771,KPDmeas= 0.1824,KC= 0.1794 Ncalc = 1.78 - 1.8 ![]() Uniaxial (+/-), a=1.79, b=1.79, bire=0.0000. |
| Calculated Properties of Philipsbornite![]() Bulk Density (Electron Density)=4.08 gm/cc |
note: Specific Gravity of Philipsbornite =4.46 gm/cc. ![]() Fermion Index = 0.06 |
Boson Index = 0.94 ![]() PEPhilipsbornite = 535.99 barns/electron |
U=PEPhilipsbornite x rElectron Density=2,186.73 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Philipsbornite is Not Radioactive | Philipsbornite Classification![]() 42.07.04.02 (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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(42.07.04)Arsenocrandallite 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 Philipsbornite Information![]() NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Philipsbornite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Philipsbornite using: Visit our Advertisers for Philipsbornite : A Bijoux Google Search for PhilipsborniteAdam's Minerals Google Search for Philipsbornite Cape Minerals Google Search for Philipsbornite Dakota Matrix Minerals Google Search for Philipsbornite Excalibur Mineral Corp. Google Search for Philipsbornite Exceptional Minerals Google Search for Philipsbornite John Betts Fine Minerals Search for Philipsbornite McDougall Minerals Google Search for Philipsbornite Mineral News Website Link Rock and Mineral Shows Google Search for Philipsbornite Weinrich Minerals, Inc. Google Search for Philipsbornite Ask about Philipsbornite here : Print or Cut-and-Paste your Philipsbornite Specimen Label here :
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