Mineralogy Database

Ekaterinite Mineral Data

Search Webmineral :

General Ekaterinite Information

Help on Chemical  Formula: Chemical Formula: Ca2B4O7(Cl,OH)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 333.11 gm
   Calcium   24.06 %  Ca   33.67 % CaO
   Boron     12.98 %  B    41.80 % B2O3
   Hydrogen   1.36 %  H    12.17 % H2O
   Chlorine  15.96 %  Cl   15.96 % Cl
               -   %   Cl   -3.60 % -O=Cl2   
   Oxygen    45.63 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2B4O7Cl1.5(OH)0.5•2(H2O)
Help on Environment: Environment: Calcite and calcite�anhydrite veins associated with a mineralized skarn.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: From drill cores in the Korshunovskoye iron�boron skarn deposit, Irkutsk district, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Yekaterina Vladimirovna Rozhkova (1898-1979), Russian mineralogist, Research Institute of Mineral Resources, Moscow, Russia.
Help on Name Pronunciation: Name Pronunciation: Ekaterinite + Pronunciation Say EKATERINITE

Ekaterinite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image


Comments: Pale pink crystalline cleavage fragment of ekaterinite.
Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ekaterinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.01349
Help on Cell Dimensions: Cell Dimensions: a = 11.86, c = 23.88, Z = 12; V = 2,908.94 Den(Calc)= 2.28
Help on Crystal System: Crystal System: Hexagonal - Pyramidal H-M Symbol (6) Space Group: C6
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.916(1), 2.31(1), 2.047(0.99),

Physical Properties of Ekaterinite

Help on Color: Color: Pearl white, Pink.
Help on Density: Density: 2.44
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Pearly
Help on Streak: Streak: white

Optical Properties of Ekaterinite

Help on Gladstone-Dale: Gladstone-Dale: CI 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
Help on Optical Data: Optical Data: Uniaxial (-), e=1.574, w=1.577, bire=0.0030.

Calculated Properties of Ekaterinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Ekaterinite =2.28 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEEkaterinite = 4.15 barns/electron
U=PEEkaterinite x rElectron Density= 9.44 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ekaterinite is Not Radioactive

Ekaterinite Classification

Help on  Dana Class: Dana Class: (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.07)Dana Type
  (26.07.03)Dana Group Ekaterinite Ca2B4O7(Cl,OH)2•2(H2O) C6 6
Help on  Strunz Class: Strunz Class: 06.HA.40 06 - BORATES
  06.H - Unclassified Borates
  06.HA -Unclassified borates
06.HA.40 Ekaterinite Ca2B4O7(Cl,OH)2•2(H2O) C6 6

Other Ekaterinite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Ekaterinite :
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

Search for Ekaterinite using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ekaterinite :

Ask about Ekaterinite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

Print or Cut-and-Paste your Ekaterinite Specimen Label here :


Dana No: Strunz No: 06.HA.40





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.