Inderborite Mineral Data

Inderborite Mineral Data
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General Inderborite Information

Help on Chemical Formula: Chemical Formula: CaMg[B3O3(OH)5]2•6(H2O)
Help on Composition: Composition: Molecular Weight = 503.40 gm
   Calcium     7.96 %  Ca   11.14 % CaO
   Magnesium   4.83 %  Mg    8.01 % MgO
   Boron      12.88 %  B    41.49 % B2O3
   Hydrogen    4.40 %  H    39.37 % H2O
   Oxygen     69.92 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaMgB6O6(OH)10•6(H2O)
Help on Environment: Environment: With other borates in the caprock of a salt diapir.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1941
Help on Locality: Locality: Inder borate deposit, Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Inderborite + Pronunciation Say INDERBORITE
Help on Synonym: Synonym: ICSD 79155
  PDF 47-1835
 

Inderborite Image

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Inderborite

Comments: Translucent glassy crystalline inderborite.
Location: Lake Inder, Atyrau, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Inderborite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.5616:1:1.638
Help on Cell Dimensions: Cell Dimensions: a = 19.11, b = 7.46, c = 12.22, Z = 4; beta = 90.8° V = 1,741.92 Den(Calc)= 1.92
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.35(1), 3.07(0.8), 3.26(0.8),
Click Here for Large Inderborite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
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Burns P C , Hawthorne F C , The Canadian Mineralogist , 32 (1994) p.533-539, Structure and hydrogen bonding in inderborite, a heteropolyhedral sheet, structure

 

Physical Properties of Inderborite

Help on Cleavage: Cleavage: {100} Good
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.004
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Inderborite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.034 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2646,KPDmeas= 0.2535,KC= 0.2624
Ncalc = 1.5 - 1.53
Help on Optical Data: Optical Data: Biaxial (-), a=1.482, b=1.512, g=1.53, bire=0.0480, 2V(Calc)=74, 2V(Meas)=77.
 

Calculated Properties of Inderborite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.98 gm/cc
note: Specific Gravity of Inderborite =1.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEInderborite = 1.33 barns/electron
U=PEInderborite x rElectron Density= 2.63 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Inderborite is Not Radioactive
 

Inderborite Classification
Help on Dana Class: Dana Class: 26.03.01.02 (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.03)Dana Type
  (26.03.01)Inyoite Group
 
26.03.01.01 Inyoite Ca2B6O6(OH)10•8(H2O) P 21/a 2/m
 
26.03.01.02 Inderborite CaMg[B3O3(OH)5]2•6(H2O) A2/a 2/m
 
26.03.01.03 Inderite MgB3O3(OH)5•5(H2O) P 21/a 2/m
Help on Strunz Class: Strunz Class: 06.CA.25 06 - BORATES
  06.C - Triborates
  06.CA -Neso-triborates
 
06.CA.25 Inderborite CaMg[B3O3(OH)5]2•6(H2O) A2/a 2/m
 

Other Inderborite 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 Inderborite :
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
15 - WWW-MINCRYST

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Ask about Inderborite here :
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Print or Cut-and-Paste your Inderborite Specimen Label here :

Inderborite

CaMg[B3O3(OH)5]2•6(H2O)
Dana No: 26.03.01.02 Strunz No: 06.CA.25
Locality:

 

Notes: