Hidalgoite Mineral Data + 
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- 43.4.1.1 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.2 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m
- 43.4.1.3 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.4 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m
- 43.4.1.5 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.6 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.7 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.8 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
- 43.4.1.9 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m
- 43.4.1.10 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m
- VII/B.35-10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m
- VII/B.35-20 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
- VII/B.35-30 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
- VII/B.35-40 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m
- VII/B.35-60 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m
- VII/B.35-65 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m
- VII/B.35-70 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m
- VII/B.35-75 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m
- VII/B.35-80 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m
- VII/B.35-90 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m
General Hidalgoite Information |
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 Chemical Formula: |
PbAl3(AsO4)(SO4)(OH)6 | ||
| Composition: |
Molecular Weight = 625.17 gm | ||
| Aluminum 12.95 % Al 24.46 % Al2O3 | |||
| Arsenic 11.98 % As 18.38 % As2O5 | |||
| Hydrogen 0.97 % H 8.64 % H2O | |||
| Lead 33.14 % Pb 35.70 % PbO | |||
| Sulfur 5.13 % S 12.81 % SO3 | |||
| Oxygen 35.83 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
PbAl3(AsO4)(SO4)(OH)6 | ||
| IMA Status: |
Valid Species (Pre-IMA) 1953 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
Hidalgoite Image | |||
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Images:
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Hidalgoite Crystallography |
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| Axial Ratios: |
a:c = 1:2.41335 | ||
| Cell Dimensions: |
a = 7.04, c = 16.99, Z = 3; V = 729.24 Den(Calc)= 4.27 | ||
| Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.981(1), 3.51(0.9), 5.73(0.9), | ||
Physical Properties of Hidalgoite |
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| Cleavage: |
None | ||
| Color: |
Gray white, White, Light green, Light gray. | ||
| Density: |
3.96 | ||
| Diaphaniety: |
Translucent to Subopaque | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Earthy (Dull) | ||
| Streak: |
white | ||
Optical Properties of Hidalgoite |
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| Gladstone-Dale: |
CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.072 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.167,KPDmeas= 0.1801,KC= 0.18 |
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| Optical Data: |
Uniaxial (?), b=1.713. | ||
Calculated Properties of Hidalgoite |
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| Electron Density: |
relectron=3.65 gm/cc |
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| Fermion Index |
Fermion Index = 0.0738 Boson Index = 0.9262 |
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| Photoelectric: |
PEHidalgoite = 561.40 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hidalgoite is Not Radioactive |
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Hidalgoite Classification |
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| Dana Class: |
43.4.1.3 (43)Compound Phosphates, etc. | ||
| (43.4)(Anhydrous Compound Anions With Hydroxyl or Halogen) | |||
| (43.4.1)Dana Group | |||
| Strunz Class: |
VII/B.35-70 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb | |||
| VII/B.35 - Beudantite group | |||
Other Hidalgoite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Hidalgoite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Hidalgoite using: Visit our Advertisers for Hidalgoite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Hidalgoite Mineral Data : Ask about Hidalgoite here : Print or Cut-and-Paste your Hidalgoite Specimen Label here :
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