Raite Mineral Data + Say RAITE


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General Raite Information

Help on Chemical  Formula: Chemical Formula: Na3Mn3Ti0.25Si8O20(OH)2·10(H2O)
Help on Composition: Composition: Molecular Weight = 1,004.59 gm
   Sodium      6.87 %  Na    9.25 % Na2O
   Titanium    1.19 %  Ti    1.99 % TiO2
   Manganese  16.41 %  Mn   21.18 % MnO
   Silicon    22.37 %  Si   47.85 % SiO2
   Hydrogen    2.21 %  H    19.73 % H2O
   Oxygen     50.96 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3Mn2+3Ti0.25Si8O20(OH)2·10(H2O)
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 85315
  PDF 25-1318
 

Raite Image

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Raite

Comments: Golden raite crystals up to 2 mm long filling cavities in white microcline with minor lomonosovite and natrolite.
Location: Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: 7x4x3 cm.
© John Betts - Fine Minerals

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Raite   Mountainite

Comments: Bright white fibrous acicular mountainite crystal aggregate with pale golden raite.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Raite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8579:1:0.3005
Help on Cell Dimensions: Cell Dimensions: a = 15.1, b = 17.6, c = 5.29, Z = 2; beta = 100.05° V = 1,384.30 Den(Calc)= 2.41
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.64(1), 2.939(1), 11.4(1),
 

Physical Properties of Raite

Help on Cleavage: Cleavage: [100] Perfect, [010] Perfect, [001] Perfect
Help on Color: Color: Brown, Violet red, Golden yellow, Reddish brown.
Help on Density: Density: 2.39
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 3 - Calcite
 

Optical Properties of Raite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2257,KPDmeas= 0.2276,KC= 0.2337
Help on Optical Data: Optical Data: Biaxial (-), a=1.54, b=1.542, g=1.55, bire=0.0100, 2V(Calc)=54, 2V(Meas)=53.
 

Calculated Properties of Raite

Help on Electron Density: Electron Density:

relectron=2.40 gm/cc
note: rRaite =2.39 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01223
Boson Index = 0.98777
Help on Photoelectric: Photoelectric:

PERaite = 5.26 barns/electron
U=PERaite x relectron= 12.61 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Raite is Not Radioactive

 

Raite Classification

Help on  Dana Class: Dana Class: 78.5.8.1 (78)Unclassified silicates
  (78.5)possible phyllosilicates
  (78.5.8)Dana Group
 
78.5.8.1 Raite Na3Mn3Ti0.25Si8O20(OH)2·10(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: VIII/F.24-30 VIII - Silicates
  VIII/F - Inosilicates (chain and band) Quadruplet chains [Si4O12]8-
  VIII/F.24 - Balangeroite - Raite series
 
VIII/F.24-10 Balangeroite (Mg,Fe,Fe,Mn)42Si16O54(OH)40 P 2/n 2/m
 
VIII/F.24-12 Tiragalloite Mn4AsSi3O12(OH) P 21/n 2/m
 
VIII/F.24-20* Gageite (Mn,Mg,Zn)42Si16O54(OH)40 P1 1
 
VIII/F.24-20 Gageite-2M (Mn,Mg,Zn)42Si16O54(OH)40 P 2/n 2/m
 
VIII/F.24-30 Raite Na3Mn3Ti0.25Si8O20(OH)2·10(H2O) C 2/m 2/m
 

Other Raite Information

Help on References: References: 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 Raite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 -Athena 6 - EUROmin Project 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 -Mineralienatlas (Deutsch) 15 -QUT Mineral Atlas 16 - WWW-MINCRYST 17 -École des Mines de Paris

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Print or Cut-and-Paste your Raite Specimen Label here :

Raite

Na3Mn3Ti0.25Si8O20(OH)2·10(H2O)
Dana No: 78.5.8.1 Strunz No: VIII/F.24-30
Locality:

 

Notes:

 

 
   
 
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