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Quadruphite-VII Mineral Data |
General Quadruphite-VII Information |
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Na14CaMgTi4[Si2O7]2(PO4)4O4F2 | |
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Molecular Weight = 1,395.97 gm | |
Sodium 23.06 % Na 31.08 % Na2O | ||
Calcium 2.87 % Ca 4.02 % CaO | ||
Magnesium 1.74 % Mg 2.89 % MgO | ||
Titanium 13.72 % Ti 22.89 % TiO2 | ||
Silicon 8.05 % Si 17.22 % SiO2 | ||
Phosphorus 8.88 % P 20.34 % P2O5 | ||
Oxygen 38.97 % O | ||
Fluorine 2.72 % F 2.72 % F | ||
- % F -1.15 % -O=F2 | ||
______ ______ | ||
100.00 % 100.00 % = TOTAL OXIDE | ||
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Na14CaMgTi4(Si2O7)2(PO4)4O4F2 | |
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Approved IMA 1992 | |
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Mt. Alluaiv in the NW part of the Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. | |
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Named for the Latin "quadruplex" and the element phosphorus, for the quantity of PO4 groups in the formula. | |
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Quadruphite-VII + Pronunciation ![]() |
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IMA1990-026 | |
Quadruphite-VII Crystallography |
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a:b:c =0.7647:1:2.8724 | |
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a = 5.415, b = 7.081, c = 20.34, Z = 1; alpha = 86.85°, beta = 94.4°, gamma = 89.94° V = 776.44 Den(Calc)= 2.99 | |
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Triclinic - Pedial H-M Symbol (1) Space Group: P1 | |
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By Intensity(I/Io): 2.88(1), 2.702(0.8), 2.636(0.7), | |
Physical Properties of Quadruphite-VII |
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Brown. | |
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3.12 | |
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Transparent to Translucent | |
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5 - Apatite | |
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Vitreous - Resinous | |
Optical Properties of Quadruphite-VII |
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CI meas= 0.098 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.059 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2235,KPDmeas= 0.2142,KC= 0.2375 Ncalc = 1.71 - 1.74 |
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Biaxial (-), a=1.63, b=1.678, g=1.697, bire=0.0670, 2V(Calc)=62, 2V(Meas)=62. | |
Calculated Properties of Quadruphite-VII |
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Bulk Density (Electron Density)=2.91 gm/cc note: Specific Gravity of Quadruphite-VII =2.99 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PEQuadruphite-VII = 3.76 barns/electron U=PEQuadruphite-VII x rElectron Density= 10.94 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Quadruphite-VII is Not Radioactive |
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Quadruphite-VII Classification |
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43.05.19.01 (43)Compound Phosphates, etc. | |
(43.05)(Hydrated Compound Anions With Hydroxyl or Halogen) | ||
(43.05.19)Dana Group | ||
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09.BE.45 09 - SILICATES (Germanates) | |
09.B - Sorosilicates | ||
09.BE -Si2O7 groups with additional anions; | ||
Other Quadruphite-VII Information |
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PHYS. PROP.(Am.Min.,Vol.78,p1316,1993) OPTIC PROP.(Am.Min.,Vol.78,p1316,1993) | |
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Links to other databases for Quadruphite-VII : 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 Quadruphite-VII using: Visit our Advertisers for Quadruphite-VII : Ask about Quadruphite-VII here : Print or Cut-and-Paste your Quadruphite-VII Specimen Label here :
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