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Lithosite

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Formula:
K6Al4Si8O25 · 2H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
Crystal System:
Monoclinic
This page provides mineralogical data about Lithosite.


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Classification of LithositeHide

Approved
9.GB.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
B : Chains of single connected 4-membered rings
77.2.2.1

77 : TECTOSILICATES Zeolites
2 : Zeolite group - related species
16.3.1

16 : Silicates Containing Aluminum and other Metals
3 : Aluminosilicates of K

Physical Properties of LithositeHide

Vitreous
Colour:
Colourless
Hardness:
5½ on Mohs scale

Optical Data of LithositeHide

Type:
Biaxial (+)
RI values:
nα = 1.510 nβ = 1.513 nγ = 1.527
2V:
Measured: 47° , Calculated: 52°
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong

Chemical Properties of LithositeHide

Formula:
K6Al4Si8O25 · 2H2O
IMA Formula:
K3Al2Si4O12(OH)

Crystallography of LithositeHide

Crystal System:
Monoclinic
Cell Parameters:
a = 15.19 Å, b = 10.23 Å, c = 8.34 Å
β = 90.21°
Ratio:
a:b:c = 1.485 : 1 : 0.815
Unit Cell V:
1,295.97 ų (Calculated from Unit Cell)

Type Occurrence of LithositeHide

Synonyms of LithositeHide

Other Language Names for LithositeHide

German:Lithosit
Spanish:Lithosita

Related Minerals - Nickel-Strunz GroupingHide

9.GB.05Ammonioleucite(NH4,K)(AlSi2O6)Tet.
9.GB.05AnalcimeNa(AlSi2O6) · H2OTric.
9.GB.05HsianghualiteCa3Li2(Be3Si3O12)F2
9.GB.05LeuciteK(AlSi2O6)Tet. 4/m : I41/a
9.GB.05Pollucite(Cs,Na)2(Al2Si4O12) · 2H2OIso. m3m (4/m 3 2/m) : Ia3d
9.GB.05WairakiteCa(Al2Si4O12) · 2H2OMon. 2/m
9.GB.05KirchhoffiteCs(BSi2O6)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.GB.10LaumontiteCaAl2Si4O12 · 4H2OMon. 2/m : B2/m
9.GB.15YugawaraliteCaAl2Si6O16 · 4H2OMon.
9.GB.20RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2OTet.
9.GB.25GoosecreekiteCa[Al2Si6O16] · 5H2OMon.
9.GB.30Montesommaite(K,Na)9Al9Si23O64 · 10H2OOrth.
9.GB.35ParthéiteCa2(Si4Al4) O15 (OH)2•4H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.3.2KaliophiliteKAlSiO4Hex.
16.3.3KalsiliteKAlSiO4Hex. 6 2 2 : P63 2 2
16.3.4LeuciteK(AlSi2O6)Tet. 4/m : I41/a
16.3.5MicroclineK(AlSi3O8)Tric. 1
16.3.6OrthoclaseK(AlSi3O8)Mon. 2/m : B2/m
16.3.7SanidineK(AlSi3O8)Mon. 2/m : B2/m
16.3.8MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for LithositeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1984): 69: 210.
Doklady Akademii Nauk SSSR (1986): 291(6): 1370-1373.

Internet Links for LithositeHide

Localities for LithositeHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Russia (TL)
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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