Mineralogy Database

Garrelsite-V Mineral Data

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General Garrelsite-V Information

Help on Chemical  Formula: Chemical Formula: Ba3NaSi2B7O16(OH)4
Help on Composition: Composition: Molecular Weight = 890.83 gm
   Barium    46.25 %  Ba   51.63 % BaO
   Sodium     2.58 %  Na    3.48 % Na2O
   Silicon    6.31 %  Si   13.49 % SiO2
   Boron      8.49 %  B    27.35 % B2O3
   Hydrogen   0.45 %  H     4.04 % H2O
   Oxygen    35.92 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba3NaSi2B7O16(OH)4
Help on Environment: Environment: In a borehole in dolomitic shales.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: South Ouray No. 1 well, Uintah County, Utah. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Robert M. Garrels (1916-1988), U.S. Geochemist.
Help on Name Pronunciation: Name Pronunciation: Garrelsite-V + Pronunciation Say GARRELSITE-V

Garrelsite-V Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7291:1:1.7054
Help on Cell Dimensions: Cell Dimensions: a = 14.639, b = 8.466, c = 14.438, Z = 4; beta = 114.21° V = 1,631.98 Den(Calc)= 3.63
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.05(1), 3.64(0.8), 2.03(0.6),2.76(0.5), 2.87(0.5), 4.23(0.3), 6.13(0.3),

Physical Properties of Garrelsite-V

Help on Color: Color: Colorless.
Help on Density: Density: 3.68
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Pyramidal - Crystals are shaped like pyramids.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Garrelsite-V

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.021 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.172,KPDmeas= 0.1697,KC= 0.1733
Ncalc = 1.63 - 1.64
Help on Optical Data: Optical Data: Biaxial (-), a=1.6, b=1.633, g=1.64, bire=0.0400

Calculated Properties of Garrelsite-V

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.31 gm/cc
note: Specific Gravity of Garrelsite-V =3.63 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PEGarrelsite-V = 203.78 barns/electron
U=PEGarrelsite-V x rElectron Density= 674.26 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Garrelsite-V is Not Radioactive

Garrelsite-V Classification

Help on  Dana Class: Dana Class: (27)Compound Borates
  (27.01)Dana Type
  (27.01.07)Dana Group Garrelsite-V Ba3NaSi2B7O16(OH)4 C 2/c 2/m
Help on  Strunz Class: Strunz Class: 09.AJ.15 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,
09.AJ.15 Garrelsite-VIII Ba3NaSi2B7O16(OH)4 C 2/c 2/m
09.AJ.15 Garrelsite-V Ba3NaSi2B7O16(OH)4 C 2/c 2/m

Other Garrelsite-V Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Garrelsite-V :
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: 09.AJ.15





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