Kurchatovite Mineral Data + 
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- 24.4.2.1 Kurchatovite Ca(Mg,Mn,Fe)B2O5 P 212121 2 2 2
- V/H.01-10 Suanite Mg2B2O5 P 21/a 2/m
- V/H.01-20 Clinokurchatovite Ca(Mg,Fe,Mn)B2O5 P 21/b 2/m
- V/H.01-30 Kurchatovite Ca(Mg,Mn,Fe)B2O5 P 212121 2 2 2
General Kurchatovite Information |
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 Chemical Formula: |
Ca(Mg,Mn,Fe++)B2O5 | ||
| Composition: |
Molecular Weight = 178.34 gm | ||
| Calcium 22.47 % Ca 31.44 % CaO | |||
| Magnesium 8.18 % Mg 13.56 % MgO | |||
| Manganese 9.24 % Mn 11.93 % MnO | |||
| Iron 3.13 % Fe 4.03 % FeO | |||
| Boron 12.12 % B 39.04 % B2O3 | |||
| Oxygen 44.86 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaMg0.6Mn2+0.3Fe2+0.1B2O5 | ||
| Environment: |
Found in a skarn. Dimorphous with clinokurchatovite. | ||
| IMA Status: |
Approved IMA 1966 | ||
| Locality: |
Solongo, Transbaikalia, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Igor V. Kurchatov (1903-1960), Russian physicist. | ||
| Synonym: |
ICSD 200803 | ||
| PDF 43-689 | |||
Kurchatovite Image | |||
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Images:
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Kurchatovite Crystallography |
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| Axial Ratios: |
a:b:c =0.3063:1:0.1524 | ||
| Cell Dimensions: |
a = 11.15, b = 36.4, c = 5.55, Z = 24; V = 2,252.52 Den(Calc)= 3.16 | ||
| Crystal System: |
Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.78(1), 1.922(0.9), 2.67(0.8), | ||
Physical Properties of Kurchatovite |
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| Cleavage: |
[010] Perfect | ||
| Color: |
Light gray. | ||
| Density: |
3.02 | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luminescence: |
Fluorescent, Long UV=bright violet. | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Kurchatovite |
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| Gladstone-Dale: |
CI meas= -0.068 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2124,KPDmeas= 0.2223,KC= 0.2082 |
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| Optical Data: |
Biaxial (-), a=1.635, b=1.681, g=1.698, bire=0.0630, 2V(Calc)=60, 2V(Meas)=66. Dispersion r > v. | ||
| Pleochroism (x): |
colorless. | ||
| Pleochroism (y): |
colorless. | ||
| Pleochroism (z): |
colorless. | ||
Calculated Properties of Kurchatovite |
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| Electron Density: |
relectron=3.09 gm/cc |
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| Fermion Index |
Fermion Index = 0.03348 Boson Index = 0.96652 |
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| Photoelectric: |
PEKurchatovite = 6.38 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kurchatovite is Not Radioactive |
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Kurchatovite Classification |
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| Dana Class: |
24.4.2.1 (24)Borates - Anhydrous | ||
| (24.4)where (A)2 (X2O5) | |||
| (24.4.2)Dana Group | |||
| Strunz Class: |
V/H.01-30 V - Nitrates, Carbonates and Borates | ||
| V/H - Group borates. Planary groups [B2O5]4- to [B2O7]2- | |||
| V/H.01 - Suanite - Kurchatovite series | |||
Other Kurchatovite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Kurchatovite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - WWW-MINCRYST Search for Kurchatovite using: Visit our Advertisers for Kurchatovite : Translate Kurchatovite Mineral Data : Ask about Kurchatovite here : Print or Cut-and-Paste your Kurchatovite Specimen Label here :
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