[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery] Serving the mineral collector and educator community since 1970 Over 900,000 mineral specimens in stock New minerals acquired weekly - Wright's Rock Shop General Ekaterinite InformationCa2B4O7(Cl,OH)2•2(H2O) |
Molecular Weight = 333.11 gm |
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Calcium 24.06 % Ca 33.67 % CaO |
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Boron 12.98 % B 41.80 % B2O3 |
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Hydrogen 1.36 % H 12.17 % H2O |
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Chlorine 15.96 % Cl 15.96 % Cl |
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- %
Cl -3.60 % -O=Cl2 |
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Oxygen 45.63 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Ca2B4O7Cl1.5(OH)0.5•2(H2O) |
Calcite and calcite–anhydrite veins associated with a mineralized skarn. |
Approved IMA 1980 |
From drill cores in the Korshunovskoye iron–boron skarn deposit, Irkutsk district, Siberia, Russia. Link to MinDat.org Location Data. |
Named for Yekaterina Vladimirovna Rozhkova (1898-1979), Russian mineralogist, Research Institute of Mineral Resources, Moscow, Russia. |
Ekaterinite + Pronunciation |
| | Ekaterinite Image
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Ekaterinite Crystallographya:c = 1:2.01349 |
a = 11.86, c = 23.88, Z = 12; V = 2,908.94 Den(Calc)= 2.28 |
Hexagonal - PyramidalH-M Symbol (6) Space Group: C6 |
By Intensity(I/Io): 1.916(1), 2.31(1), 2.047(0.99), |
| Physical Properties of EkaterinitePearl white, Pink. |
2.44 |
1 - Talc |
Pearly |
white |
| Optical Properties of EkateriniteCI meas= 0.066 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= 0 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2524,KPDmeas= 0.2359,KC= 0.2524 Ncalc = 1.58 - 1.62 Uniaxial (-), e=1.574, w=1.577, bire=0.0030. |
| Calculated Properties of EkateriniteBulk Density (Electron Density)=2.27 gm/cc |
note: Specific Gravity of Ekaterinite =2.28 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEEkaterinite = 4.15 barns/electron |
U=PEEkaterinite x rElectron Density= 9.44 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ekaterinite is Not Radioactive | Ekaterinite Classification26.07.03.01 (26)Hydrated Borates Containing Hydroxyl or Halogen |
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(26.07)Dana Type |
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(26.07.03)Dana Group |
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06.HA.40 06 - BORATES |
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06.H - Unclassified Borates |
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06.HA -Unclassified borates |
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| Other Ekaterinite InformationNAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Ekaterinite : |
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 Search for Ekaterinite using: Visit our Advertisers for Ekaterinite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Diamond Dan Publications e-Rocks Auctions Excalibur Minerals Exceptional Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Ekaterinite Mineral Data : Ask about Ekaterinite here : Print or Cut-and-Paste your Ekaterinite Specimen Label here :
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