General Hinsdalite Information Chemical Formula: |
(Pb,Sr)Al3(PO4)(SO4)(OH)6 |
Composition: |
Molecular Weight = 551.33 gm |
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Strontium 3.97 % Sr 4.70 % SrO |
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Aluminum 14.68 % Al 27.74 % Al2O3 |
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Phosphorus 5.62 % P 12.87 % P2O5 |
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Hydrogen 1.10 % H 9.80 % H2O |
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Lead 28.19 % Pb 30.36 % PbO |
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Sulfur 5.82 % S 14.52 % SO3 |
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Oxygen 40.63 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Pb0.75Sr0.25Al3(PO4)(SO4)(OH)6 |
Environment: |
Secondary mineral in the oxidized zone of polymetallic sulfide deposits. |
IMA Status: |
Valid Species (Pre-IMA) 1911 |
Locality: |
Golden Fleece mine, Hinsdale County., Colorado, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named after its locality. |
Name Pronunciation: |
Hinsdalite + Pronunciation |
| | Hinsdalite Image
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Hinsdalite Crystallography Axial Ratios: |
a:c = 1:2.40343 |
Cell Dimensions: |
a = 6.99, c = 16.8, Z = 3; V = 710.88 Den(Calc)= 3.86 |
Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.78(1), 2.96(0.8), 5.59(0.65), |
Crystal Structure:
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Mouse
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| Physical Properties of Hinsdalite Cleavage: |
{001} Perfect |
Color: |
Colorless, Green. |
Density: |
4.65 |
Diaphaneity: |
Transparent to translucent |
Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Habit: |
Crystalline - Poor - Occurs primarily as crudely formed crystals. |
Habit: |
Pseudo Tetragonal - Crystals show a tetragonal shape. |
Hardness: |
4.5 - Between Fluorite and Apatite |
Luminescence: |
Non-fluorescent. |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| Optical Properties of Hinsdalite Dichroism (e): |
none. |
Dichroism (w): |
none. |
Gladstone-Dale: |
CI meas= 0.216 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1768,KPDmeas= 0.1468,KC= 0.1872 Ncalc = 1.72 - 1.87 Optical Data: |
Uniaxial (+), w=1.67-1.671, e=1.689-1.7, bire=0.0190-0.0290. |
| Calculated Properties of Hinsdalite Electron Density: |
Bulk Density (Electron Density)=3.63 gm/cc |
note: Specific Gravity of Hinsdalite =3.86 gm/cc. Fermion Index: |
Fermion Index = 0.06 |
Boson Index = 0.94 Photoelectric: |
PEHinsdalite = 466.14 barns/electron |
U=PEHinsdalite x rElectron Density=1,690.53 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Hinsdalite is Not Radioactive | Hinsdalite Classification Dana Class: |
43.04.01.05 (43)Compound Phosphates, etc. |
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(43.04)(Anhydrous Compound Anions With Hydroxyl or Halogen) |
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(43.04.01)Beudantite Group |
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Strunz Class: |
08.BL.05 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 Hinsdalite Information References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4) |
See Also: |
Links to other databases for Hinsdalite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - GeoScienceWorld 7 - Google Images 8 - Google Scholar 9 - Handbook of Mineralogy (MinSocAm) 10 - Handbook of Mineralogy (UofA) 11 - MinDAT 12 - Mineralienatlas (Deutsch) 13 - Online Mineral Museum 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - WWW-MINCRYST Search for Hinsdalite using: Visit our Advertisers for Hinsdalite : A Bijoux Google Search for HinsdaliteAdam's Minerals Google Search for Hinsdalite Cape Minerals Google Search for Hinsdalite Dakota Matrix Minerals Google Search for Hinsdalite Excalibur Mineral Corp. Google Search for Hinsdalite Exceptional Minerals Google Search for Hinsdalite John Betts Fine Minerals Search for Hinsdalite McDougall Minerals Google Search for Hinsdalite Mineral News Website Link Rock and Mineral Shows Google Search for Hinsdalite Weinrich Minerals, Inc. Google Search for Hinsdalite Ask about Hinsdalite here : Print or Cut-and-Paste your Hinsdalite Specimen Label here :
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