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Indigirite Mineral Data

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General Indigirite Information

Help on Chemical  Formula: Chemical Formula: Mg2Al2(CO3)4(OH)2•15(H2O)
Help on Composition: Composition: Molecular Weight = 646.85 gm
   Magnesium   7.51 %  Mg   12.46 % MgO
   Aluminum    8.34 %  Al   15.76 % Al2O3
   Hydrogen    4.99 %  H    44.56 % H2O
   Carbon      7.43 %  C    27.21 % CO2
   Oxygen     71.73 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg2Al2(CO3)4(OH)2•15(H2O)
Help on Environment: Environment: Alteration zone.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Sarylakh Au-Sb deposit, Indigirka River, northeastern Yakutia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Indigirite + Pronunciation Say INDIGIRITE

Indigirite Crystallography

Help on Crystal System: Crystal System: Monoclinic Space Group: Unk.
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.8(1), 5.24(0.9), 7.62(0.9),

Physical Properties of Indigirite

Help on Color: Color: Snow white.
Help on Density: Density: 1.6
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Silky
Help on Streak: Streak: white

Optical Properties of Indigirite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.142 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.3044,KC= 0.2665
Ncalc = 1.43
Help on Optical Data: Optical Data: Uniaxial (+), w=1.472, e=1.502, bire=0.0300.

Calculated Properties of Indigirite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.67 gm/cc
note: Specific Gravity of Indigirite =1.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0086836223
Boson Index = 0.9913163777
Help on Photoelectric: Photoelectric: PEIndigirite = 0.65 barns/electron
U=PEIndigirite x rElectron Density= 1.09 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Indigirite is Not Radioactive

Indigirite Classification

Help on  Dana Class: Dana Class: 16b.01.03.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.01)where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1
  (16b.01.03)Dana Group
16b.01.03.01 Indigirite Mg2Al2(CO3)4(OH)2•15(H2O) Unk. Mono
Help on  Strunz Class: Strunz Class: 05.DA.65 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
05.DA.65 Indigirite Mg2Al2(CO3)4(OH)2•15(H2O) Unk. Mono

Other Indigirite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Indigirite :
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

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Dana No: 16b.01.03.01 Strunz No: 05.DA.65