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Khibinskite Mineral Data |
General Khibinskite Information |
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K2ZrSi2O7 | |
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Molecular Weight = 337.59 gm | |
Potassium 23.16 % K 27.90 % K2O | ||
Zirconium 27.02 % Zr 36.50 % ZrO2 | ||
Silicon 16.64 % Si 35.60 % SiO2 | ||
Oxygen 33.18 % O | ||
______ ______ | ||
100.00 % 100.00 % = TOTAL OXIDE | ||
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K2ZrSi2O7 | |
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Aegirine-rich metasomatic rocks. | |
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Approved IMA 1974 | |
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Gakman Valley, Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. | |
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Named for the locality. | |
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Khibinskite + Pronunciation ![]() |
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ICSD 20100 | |
PDF 26-928 | ||
Khibinskite Crystallography |
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a:b:c =1.7315:1:1.2702 | |
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a = 19.22, b = 11.1, c = 14.1, Z = 16; beta = 116.5° V = 2,692.07 Den(Calc)= 3.33 | |
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: B2/m | |
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By Intensity(I/Io): 2.76(1), 2.95(0.7), 1.63(0.65), | |
Physical Properties of Khibinskite |
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{001} Perfect, {100} Perfect, {111} Perfect | |
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White, Light yellow, Colorless. | |
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3.3 - 3.4, Average = 3.34 | |
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Translucent | |
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Even - Flat surfaces (not cleavage) fractured in an even pattern. | |
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Inclusions - Generally found as inclusions in other minerals. | |
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Stellate - Occurs as spherical, radial aggregates radiating from a "star" like point. | |
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4.5-5.5 - Near Apatite | |
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Greasy (Oily) | |
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white | |
Optical Properties of Khibinskite |
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CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.019 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2097,KPDmeas= 0.2085,KC= 0.2057 Ncalc = 1.68 - 1.7 |
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Biaxial (-), a=1.665, b=1.715, g=1.715, bire=0.0500, 2V(Calc)=0, 2V(Meas)=6-16. | |
Calculated Properties of Khibinskite |
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Bulk Density (Electron Density)=3.22 gm/cc note: Specific Gravity of Khibinskite =3.35 gm/cc. |
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Fermion Index = 0.03 Boson Index = 0.97 |
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PEKhibinskite = 39.22 barns/electron U=PEKhibinskite x relectron= 126.09 barns/cc. |
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GRapi = 320.74 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Khibinskite |
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Khibinskite Classification |
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55.02.02.02 (55)Sorosilicate Si2O7 Groups, Generally with No Additional Anions | |
(55.02)with cations in [6] coordination | ||
(55.02.02)Keldyshite group | ||
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09.BC.10 09 - SILICATES (Germanates) | |
09.B - Sorosilicates | ||
09.BC -Si2O7 groups, without non-tetrahedral anions; | ||
Other Khibinskite Information |
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NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |
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Links to other databases for Khibinskite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Khibinskite using: Visit our Advertisers for Khibinskite : Ask about Khibinskite here : Print or Cut-and-Paste your Khibinskite Specimen Label here :
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