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Magnesiopascoite Mineral Data |
General Magnesiopascoite Information |
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Ca2Mg[V10O28]•16H2O | ||
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Molecular Weight = 1,341.11 gm | ||
Calcium 5.29 % Ca 7.40 % CaO | |||
Magnesium 1.54 % Mg 2.55 % MgO | |||
Vanadium 37.98 % V 67.81 % V2O5 | |||
Zinc 0.20 % Zn 0.24 % ZnO | |||
Cobalt 0.04 % Co 0.06 % CoO | |||
Hydrogen 2.45 % H 21.94 % H2O | |||
Oxygen 52.49 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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Ca1.77Mg0.85Zn0.04Co0.01(H2O)15.34(H3O)0.66V5+10O28 | ||
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Formed from post-mining leaching and oxidation of V-U oxide-replacement assemblage developed at the expense of organic material. Pascoite group. | ||
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Approved IMA 2007 (Dana # Added) | ||
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Blue Cap mine, about 15 km east of La Sal, San Juan Co., Utah, USA Link to MinDat.org Location Data. | ||
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Named as the Mg analogue of pascoite | ||
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IMA2007-025 | ||
Magnesiopascoite Image | |||
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Magnesiopascoite Crystallography |
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a:b:c =1.9973:1:1.0784 | ||
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a = 19.8442, b = 9.9353, c = 10.7149, Z = 2; beta = 120.305° V = 1,823.86 Den(Calc)= 2.44 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m | ||
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By Intensity(I/Io): 8.571(1), 7.27(0.4), 8.872(0.3),2.137(0.2), 9.242(0.2), 4.355(0.15), 4.59(0.15), 5.477(0.15), | ||
Physical Properties of Magnesiopascoite |
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{001} Perfect | ||
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Bright orange. | ||
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2.43 | ||
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Transparent | ||
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Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
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Blocky - Crystal shape tends to be equant (e.g. feldspars). | ||
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Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | ||
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2.5 - Finger Nail | ||
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Adamantine | ||
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yellow | ||
Optical Properties of Magnesiopascoite |
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CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.3249,KPDmeas= 0.3262,KC= 0.3263 Ncalc = 1.79 - 1.8 |
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Biaxial (-), a=1.769, b=1.802, g=1.807, bire=0.0380, 2V(Calc)=40, 2V(Meas)=45. Dispersion r < v crossed. | ||
Calculated Properties of Magnesiopascoite |
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Bulk Density (Electron Density)=2.40 gm/cc note: Specific Gravity of Magnesiopascoite =2.43 gm/cc. |
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Fermion Index = 0.0028970877 Boson Index = 0.9971029123 |
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PEMagnesiopascoite = 7.96 barns/electron U=PEMagnesiopascoite x rElectron Density= 19.08 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Magnesiopascoite is Not Radioactive |
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Magnesiopascoite Classification |
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47.02.01.02 (47)Vanadium Oxysalts | ||
(47.02)(VmOn) | |||
(47.02.01)Pascoite Group | |||
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04.HC.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
04.H - V[5,6] Vanadates | |||
04.HC -[6]-Sorovanadates | |||
Other Magnesiopascoite Information |
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NAME( CanMin, v46:679) PHYS. PROP.(CanMin, v46:679) OPTIC PROP.(CanMin, v46:679) | ||
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Links to other databases for Magnesiopascoite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Magnesiopascoite using: Visit our Advertisers for Magnesiopascoite : Ask about Magnesiopascoite here : Print or Cut-and-Paste your Magnesiopascoite Specimen Label here :
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