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Hureaulite Mineral Data + |
General Hureaulite Information |
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| Mn5(PO3OH)2(PO4)2·4(H2O) | |||
| Molecular Weight = 728.65 gm | |||
| Manganese 37.70 % Mn 48.68 % MnO | |||
| Phosphorus 17.00 % P 38.96 % P2O5 | |||
| Hydrogen 1.38 % H 12.36 % H2O | |||
| Oxygen 43.92 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+5(PO3OH)2(PO4)2·4(H2O) | |||
| Secondary mineral in weathered triphylite. | |||
| Valid Species (Pre-IMA) 1826 | |||
| Hureaux in St. Silvestre and Vilate near Chanteloube, N of Limoges, Haute Vienne, France. Link to MinDat.org Location Data. | |||
| Named for the locality. | |||
| ICSD 34744 | |||
| PDF 34-146 | |||
Hureaulite Image | |||
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Hureaulite Crystallography |
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| a:b:c =1.9323:1:1.04 | |||
| a = 17.618, b = 9.1172, c = 9.482, Z = 4; beta = 96.58° V = 1,513.03 Den(Calc)= 3.20 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | |||
| By Intensity(I/Io): 3.152(1), 8.09(0.7), 2.992(0.65), | |||
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Physical Properties of Hureaulite |
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| [???] Distinct | |||
| Red, White, Grayish white, Yellowish white, Reddish white. | |||
| 3.18 | |||
| Transparent to Translucent | |||
| Brittle - Uneven - Very brittle fracture producing uneven fragments. | |||
| Compact - Occurs as a compact mass. | |||
| Fibrous - Crystals made up of fibers. | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 5 - Apatite | |||
| Non-fluorescent. | |||
| Vitreous - Greasy | |||
| white | |||
Optical Properties of Hureaulite |
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| CI meas= 0.018 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.024 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2043,KPDmeas= 0.2056,KC= 0.2092 |
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| Biaxial (-), a=1.647, b=1.654, g=1.66, bire=0.0130, 2V(Calc)=84, 2V(Meas)=75. Dispersion r < v very strong. | |||
| coloress or colorless. | |||
| yellow or pale rose. | |||
| reddish yellow or reddish brown. | |||
Calculated Properties of Hureaulite |
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relectron=3.10 gm/cc |
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| Fermion Index = 0.00021 Boson Index = 0.99979 |
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PEHureaulite = 10.41 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hureaulite is Not Radioactive |
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Hureaulite Classification |
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| 39.2.1.1 (39)Hydrated Acid Phosphates, etc | |||
| (39.2)H2 (AB)5 (XO4)4 · x(H2O) | |||
| (39.2.1)Dana Group | |||
| VII/C.04-10 VII - Phosphates, Arsenates and Vanadates | |||
| VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg | |||
| VII/C.04 - Hureaulite - Villyaellenite series | |||
Other Hureaulite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | |||
| Links to other databases for Hureaulite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Hureaulite using: Visit our Advertisers for Hureaulite : Translate Hureaulite Mineral Data : Ask about Hureaulite here : Print or Cut-and-Paste your Hureaulite Specimen Label here :
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