Uvarovite Mineral Data + Say UVAROVITE

General Uvarovite Information
Help on Chemical Formula: Chemical Formula: Ca3Cr2(SiO4)3
Help on Composition: Composition: Molecular Weight = 500.48 gm
   Calcium   24.02 %  Ca   33.61 % CaO
   Chromium  20.78 %  Cr   27.17 % CrO
   Silicon   16.84 %  Si   36.02 % SiO2
   Oxygen    38.36 %  O
            ______        ______ 
            100.00 %       96.80 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3Cr2(SiO4)3
Help on Environment: Environment: Metamorphosed chromite deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1832
Help on Locality: Locality: Central Urals, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Count S. S. Uvarov (1765-1855), Russian statesman and ardent amateur mineral collector.
Help on Synonym: Synonym: Chromium Garnet
  ICSD 27368
  PDF 11-696
 

Uvarovite Image

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Uvarovite

Comments: Green uvarovite (garnet) crystal group.
Location: Mokkivaara mine, Outokumpu, Finland. Scale: 1.3x1.2x1 cm.
© Fabre Minerals

Uvarovite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 12, Z = 8; V = 1,728.00 Den(Calc)= 3.85
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I a3d
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.684(1), 2.999(0.7), 1.603(0.6),
Help on Forms: Forms:

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Forms: [ 2 1 1]

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Novak G A , Gibbs G V , American Mineralogist , 56 (1971) p.791-823, The crystal chemistry of the silicate garnets, sample Uv

View Additional jPOWD Structure files for Uvarovite
[1] [2] [3] [4]
 

Physical Properties of Uvarovite

Help on Cleavage: Cleavage: None
Help on Color: Color: Green.
Help on Density: Density: 3.4 - 3.8, Average = 3.59
Help on Diaphaniety: Diaphaniety: Transparent to translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Lamellar - Thin laminae producing a lamellar structure.
Help on Hardness: Hardness: 6.5-7 - Pyrite-Quartz
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Vitreous (Glassy)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Uvarovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.192 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.115 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2234,KPDmeas= 0.2389,KC= 0.2004
Help on Optical Data: Optical Data: Isotropic, n=1.86.
 

Calculated Properties of Uvarovite

Help on Electron Density: Electron Density:

relectron=3.78 gm/cc
note: rUvarovite =3.85 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.02811
Boson Index = 0.97189
Help on Photoelectric: Photoelectric:

PEUvarovite = 8.23 barns/electron
U=PEUvarovite x relectron= 31.14 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Uvarovite is Not Radioactive
 

Uvarovite Classification
Help on Dana Class: Dana Class: 51.4.3b.3 (51)Nesosilicate Insular SiO4 Groups Only
  (51.4)with cations in [6] and >[6] coordination
  (51.4.3b)Garnet group (Ugrandite series)
 
51.4.3b.1 Andradite Ca3Fe2(SiO4)3 I a3d 4/m 3 2/m
 
51.4.3b.2 Grossular Ca3Al2(SiO4)3 I a3d 4/m 3 2/m
 
51.4.3b.3 Uvarovite Ca3Cr2(SiO4)3 I a3d 4/m 3 2/m
 
51.4.3b.4 Goldmanite Ca3(V,Al,Fe)2(SiO4)3 I a3d 4/m 3 2/m
 
51.4.3b.5 Yamatoite? (Mn,Ca)3(V,Al)2(SiO4)3 I a3d 4/m 3 2/m
Help on Strunz Class: Strunz Class: VIII/A.08-130 VIII - Silicates
  VIII/A - Nesosilicates with [SiO4]4-groups, cations of octahedral and cubic orientation [8+6]
  VIII/A.08 - Garnet group, Pyrope - Henritermierite
 
VIII/A.08-10 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-20 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-30 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-40 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-50 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-60 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-70 Grossular Ca3Al2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-80 Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5) I a3d 4/m 3 2/m
 
VIII/A.08-90 Katoite Ca3Al2(SiO4)3-x(OH)4xx=1.5-3 I a3d 4/m 3 2/m
 
VIII/A.08-100 Hydrougrandite? (Ca,Mg,Fe)3(Fe,Al)2(SiO4)3-x(OH)4x I a3d 4/m 3 2/m
 
VIII/A.08-110 Andradite Ca3Fe2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-120 Schorlomite Ca3(Ti,Fe,Al)2[(Si,Fe,Fe)O4]3 I a3d 4/m 3 2/m
 
VIII/A.08-125 Morimotoite Ca3TiFeSi3O12 I a3d 4/m 3 2/m
 
VIII/A.08-130 Uvarovite Ca3Cr2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-138 Yamatoite! (Mn,Ca)3(V,Al)2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-140 Goldmanite Ca3(V,Al,Fe)2(SiO4)3 I a3d 4/m 3 2/m
 
VIII/A.08-150 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe)3O12 I a3d 4/m 3 2/m
 
VIII/A.08-160 Henritermierite Ca3(Mn,Al)2(SiO4)2(OH)4 I 41/acd 4/m 2/m 2/m
 

Other Uvarovite Information
Help on References: References: NAME( Sinkankas66) 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 Uvarovite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - CalTech Mineral Spectroscopy 6 - Crocoite.com Mineral Locations 7 - EUROmin Project 8 -Google Images 9 -Google Scholar 10 -Handbook of Mineralogy (MinSocAm) 11 -Handbook of Mineralogy (UofA) 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 - Mineral and Gemstone Kingdom 16 -Mineral of the Month 17 -Mineralienatlas (Deutsch) 18 -QUT Mineral Atlas 19 - Scandinavian mineral gallery 20 - Tradeshop.com - The Rainbow of Gems 21 - UCLA - Petrography Thin-Sections 22 -University of Colorado - Mineral Structure Data 23 - WWW-MINCRYST 24 -theimage 25 -École des Mines de Paris

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Uvarovite

Ca3Cr2(SiO4)3
Dana No: 51.4.3b.3 Strunz No: VIII/A.08-130
Locality:

 

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