[How the Club Works] [Memberships - Junior, Deluxe , and Platinum] [FAQ] [Past Minerals] Join the Club - Junior, Deluxe and Platinum Memberships Available High Quality Minerals Sent to Your Home or School Each Month Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals General Kurnakovite InformationMgB3O3(OH)5•5(H2O) |
Molecular Weight = 279.85 gm |
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Magnesium 8.69 % Mg 14.40 % MgO |
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Boron 11.59 % B 37.32 % B2O3 |
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Hydrogen 5.40 % H 48.28 % H2O |
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Oxygen 74.32 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
MgB3O3(OH)5•5(H2O) |
Valid Species (Pre-IMA) 1940 |
Inder, Kazakhstan. Link to MinDat.org Location Data. |
Named for Nikolai S. Kurnakov (1860-1941), Russian mineralogist. |
Kurnakovite + Pronunciation |
ICSD 2153 |
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PDF 29-856 |
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Kurnakovite Crystallographya:b:c =0.7879:1:0.6071 |
a = 8.344, b = 10.59, c = 6.43, Z = 2; alpha = 99°, beta = 108.9°, gamma = 105.5° V = 511.61 Den(Calc)= 1.82 |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
By Intensity(I/Io): 7.22(1), 4.9(0.85), 4.21(0.8), |
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Mouse
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| Physical Properties of Kurnakovite{110} Good, {001} Indistinct |
Colorless, White. |
1.83 |
Transparent |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Crystalline - Coarse - Occurs as well-formed coarse sized crystals. |
3 - Calcite |
Vitreous - Pearly |
white |
| Optical Properties of KurnakoviteCI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2708,KPDmeas= 0.2752,KC= 0.2732 Ncalc = 1.5 - 1.51 Biaxial (-), a=1.488, b=1.508, g=1.515, bire=0.0270, 2V(Calc)=60, 2V(Meas)=63. Dispersion r > v. |
none. |
none. |
none. |
| Calculated Properties of KurnakoviteBulk Density (Electron Density)=1.91 gm/cc |
note: Specific Gravity of Kurnakovite =1.83 gm/cc. Fermion Index = 0.03 |
Boson Index = 0.97 PEKurnakovite = 0.48 barns/electron |
U=PEKurnakovite x rElectron Density= 0.92 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Kurnakovite is Not Radioactive | Kurnakovite Classification26.03.03.01 (26)Hydrated Borates Containing Hydroxyl or Halogen |
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(26.03)Dana Type |
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(26.03.03)Dana Group |
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06.CA.20 06 - BORATES |
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06.C - Triborates |
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06.CA -Neso-triborates |
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| Other Kurnakovite InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
Links to other databases for Kurnakovite : |
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 - MinDAT 9 - MinMax(Deutsch) 10 - MinMax(English) 11 - Mineralienatlas (Deutsch) 12 - QUT Mineral Atlas 13 - Ruff.Info 14 - WWW-MINCRYST Search for Kurnakovite using: Visit our Advertisers for Kurnakovite : 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 Kurnakovite Mineral Data : Ask about Kurnakovite here : Print or Cut-and-Paste your Kurnakovite Specimen Label here :
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