[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page] Shop early for Holiday Season and get the best stuff. You can put it on layaway for up to six weeks! General Khibinskite InformationK2ZrSi2O7 |
Molecular Weight = 337.59 gm |
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Potassium 23.16 % K 27.90 % K2O |
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Zirconium 27.02 % Zr 36.50 % ZrO2 |
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Silicon 16.64 % Si 35.60 % SiO2 |
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Oxygen 33.18 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
K2ZrSi2O7 |
Aegirine-rich metasomatic rocks. |
Approved IMA 1974 |
Gakman Valley, Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Named for the locality. |
Khibinskite + Pronunciation |
ICSD 20100 |
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PDF 26-928 |
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| | Khibinskite Crystallographya:b:c =1.7315:1:1.2702 |
a = 19.22, b = 11.1, c = 14.1, Z = 16; beta = 116.5° V = 2,692.07 Den(Calc)= 3.33 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: B2/m |
By Intensity(I/Io): 2.76(1), 2.95(0.7), 1.63(0.65), |
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| Physical Properties of Khibinskite{001} Perfect, {100} Perfect, {111} Perfect |
White, Light yellow, Colorless. |
3.3 - 3.4, Average = 3.34 |
Translucent |
Even - Flat surfaces (not cleavage) fractured in an even pattern. |
Inclusions - Generally found as inclusions in other minerals. |
Stellate - Occurs as spherical, radial aggregates radiating from a "star" like point. |
4.5-5.5 - Near Apatite |
Greasy (Oily) |
white |
| Optical Properties of KhibinskiteCI 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 Biaxial (-), a=1.665, b=1.715, g=1.715, bire=0.0500, 2V(Calc)=0, 2V(Meas)=6-16. |
| Calculated Properties of KhibinskiteBulk Density (Electron Density)=3.22 gm/cc |
note: Specific Gravity of Khibinskite =3.35 gm/cc. Fermion Index = 0.03 |
Boson Index = 0.97 PEKhibinskite = 39.22 barns/electron |
U=PEKhibinskite x relectron= 126.09 barns/cc. |
GRapi = 320.74 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Khibinskite | Khibinskite Classification55.02.02.02 (55)Sorosilicate Si2O7 Groups, Generally with No Additional Anions |
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(55.02)with cations in [6] coordination |
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(55.02.02)Keldyshite group |
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09.BC.10 09 - SILICATES (Germanates) |
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09.B - Sorosilicates |
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09.BC -Si2O7 groups, without non-tetrahedral anions; |
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| Other Khibinskite InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Khibinskite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Khibinskite using: Visit our Advertisers for Khibinskite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Khibinskite Mineral Data : Ask about Khibinskite here : Print or Cut-and-Paste your Khibinskite Specimen Label here :
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