Tyretskite Mineral Data

Tyretskite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About

Advertisment
John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.
 Exceptional Minerals features excellent, high quality mineral specimens for sale. We also have a weekly Best Offer Mineral Auction.
 Your premier supplier of quality mineral specimens from Southern Africa and the world at large
 A Bijoux.com is an online store specialized in the sale on the internet of precious stones , gems , minerals and jewels for individuals and professionals

General Tyretskite Information

Help on Chemical Formula: Chemical Formula: Ca2B5O9(OH)•(H2O)
Help on Composition: Composition: Molecular Weight = 313.22 gm
   Calcium   25.59 %  Ca   35.81 % CaO
   Boron     17.26 %  B    55.57 % B2O3
   Hydrogen   0.97 %  H     8.63 % H2O
   Oxygen    56.19 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2B5O9(OH)•(H2O)
Help on Environment: Environment: Cavity in dolomitic saline rock, in drillcore from a depth of 1233 m.
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: Tyret railway station, on the east Siberian railway, in the Lena-Angara salt basin, Irkutsk district, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tyretskite + Pronunciation Say TYRETSKITE
 

Tyretskite Image

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

Tyretskite

Comments: Gray granular tyretskite coating.
Location: Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tyretskite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9737:1:1.0139
Help on Cell Dimensions: Cell Dimensions: a = 6.3, b = 6.47, c = 6.56, Z = 1; alpha = 74.27°, beta = 61.6°, gamma = 61.25° V = 198.49 Den(Calc)= 2.62
Help on Crystal System: Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.86(1), 2.93(1), 2.14(0.9),
 

Physical Properties of Tyretskite

Help on Color: Color: Brownish, Brownish white, White.
Help on Density: Density: 2.189
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Tyretskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.33 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.151 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2578,KPDmeas= 0.298,KC= 0.224
Ncalc = 1.49 - 1.57
Help on Optical Data: Optical Data: Biaxial (+), a=1.637, b=1.65, g=1.67, bire=0.0330, 2V(Calc)=80, 2V(Meas)=46.
 

Calculated Properties of Tyretskite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.52 gm/cc
note: Specific Gravity of Tyretskite =2.53 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PETyretskite = 3.36 barns/electron
U=PETyretskite x rElectron Density= 8.47 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tyretskite is Not Radioactive
 

Tyretskite Classification
Help on Dana Class: Dana Class: 26.05.15.01 (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.05)Dana Type
  (26.05.15)Dana Group
 
26.05.15.01 Tyretskite Ca2B5O9(OH)•(H2O) P1 1
Help on Strunz Class: Strunz Class: 06.ED.05 06 - BORATES
  06.E - Pentaborates
  06.ED -Tecto-pentaborates
 
06.ED.05 Hilgardite Ca2B5O9Cl•(H2O) P1 1
 
06.ED.05 Tyretskite Ca2B5O9(OH)•(H2O) P1 1
 
06.ED.05 Kurgantaite! CaSr[B5O9]Cl•(H2O) P1 1
 
06.ED.05 IMA2007-047! Pb2[B5O9]Cl•0.5H2O Pnn2 mm2
 

Other Tyretskite 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 Tyretskite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

Search for Tyretskite using:

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

Visit our Advertisers for Tyretskite :

A Bijoux Google Search for Tyretskite
Adam's Minerals Google Search for Tyretskite
Cape Minerals Google Search for Tyretskite
Dakota Matrix Minerals Google Search for Tyretskite
Excalibur Mineral Corp. Google Search for Tyretskite
Exceptional Minerals Google Search for Tyretskite
John Betts Fine Minerals Search for Tyretskite
McDougall Minerals Google Search for Tyretskite
Mineral News Website Link
Rock and Mineral Shows Google Search for Tyretskite
Weinrich Minerals, Inc. Google Search for Tyretskite

Ask about Tyretskite 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 Espaņol

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

Tyretskite

Ca2B5O9(OH)•(H2O)
Dana No: 26.05.15.01 Strunz No: 06.ED.05
Locality:

 

Notes: