Mineralogy Database

Veatchite-p Mineral Data

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General Veatchite-p Information

Help on Chemical  Formula: Chemical Formula: Sr2B11O16(OH)5•(H2O)
Help on Composition: Composition: Molecular Weight = 653.19 gm
   Strontium  26.83 %  Sr   31.73 % SrO
   Boron      18.20 %  B    58.62 % B2O3
   Hydrogen    1.08 %  H     9.65 % H2O
   Oxygen     53.89 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr2B11O16(OH)5•(H2O)
Help on Environment: Environment: Evaporite borate deposits formed by volcanic activity.
Help on IMA Status: IMA Status: Approved IMA 1960 (Dana # Added)
Help on Locality: Locality: Sterling Borax mine, Tick Canyon, 3. miles NNE of Lang, Los Angeles Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as a dimorph of veatchite.
Help on Name Pronunciation: Name Pronunciation: Veatchite-p + Pronunciation Say VEATCHITE-P
Help on Synonym: Synonym: P Veatchite

Veatchite-p Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.3246:1:0.3178
Help on Cell Dimensions: Cell Dimensions: a = 6.72, b = 20.7, c = 6.58, Z = 2; beta = 119.67° V = 795.30 Den(Calc)= 2.73
Help on Crystal System: Crystal System: Monoclinic - Sphenoidal H-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.4(1), 3.31(0.6), 2.592(0.3),

Physical Properties of Veatchite-p

Help on Color: Color: Colorless, White.
Help on Density: Density: 2.6 - 2.65, Average = 2.62
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Pearly

Optical Properties of Veatchite-p

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.068 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2104,KPDmeas= 0.2188,KC= 0.2049
Ncalc = 1.53 - 1.56
Help on Optical Data: Optical Data: Biaxial (+), a=1.55, b=1.553, g=1.62, bire=0.0700, 2V(Calc)=26, 2V(Meas)=25.

Calculated Properties of Veatchite-p

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.62 gm/cc
note: Specific Gravity of Veatchite-p =2.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEVeatchite-p = 29.71 barns/electron
U=PEVeatchite-p x rElectron Density= 77.98 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Veatchite-p is Not Radioactive

Veatchite-p Classification

Help on  Dana Class: Dana Class: (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.05)Dana Type
  (26.05.10)Dana Group Veatchite-A Sr2B11O16(OH)5•(H2O) A1,A1 Tri Veatchite-p! Sr2B11O16(OH)5•(H2O) P 21 2
Help on  Strunz Class: Strunz Class: 06.EC.15 06 - BORATES
  06.E - Pentaborates
  06.EC -Phyllo-pentaborates
06.EC.15 Veatchite Sr2B11O16(OH)5•(H2O) Aa m
06.EC.15 Veatchite-A Sr2B11O16(OH)5•(H2O) A1,A1 Tri
06.EC.15 Veatchite-p! Sr2B11O16(OH)5•(H2O) P 21 2

Other Veatchite-p Information

Help on References: References: NAME( MinRec) 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 Veatchite-p :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 06.EC.15





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