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Lithosite Mineral Data

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General Lithosite Information

Help on Chemical  Formula: Chemical Formula: K6Al4Si8O25•(H2O)
Help on Composition: Composition: Molecular Weight = 985.20 gm
   Potassium  23.81 %  K    28.68 % K2O
   Aluminum   10.95 %  Al   20.70 % Al2O3
   Silicon    22.81 %  Si   48.79 % SiO2
   Hydrogen    0.20 %  H     1.83 % H2O
   Oxygen     42.22 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K6Al4Si8O25•(H2O)
Help on Environment: Environment: Ultra-agpaitic pegmatite cutting nepheline syenite in a drill core.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Vuonemiok River, southern Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek "lithos", stone, because it contains the most abundant components of the Earth's crust.
Help on Name Pronunciation: Name Pronunciation: Lithosite + Pronunciation Say LITHOSITE
Help on Synonym: Synonym: ICSD 62357
  PDF 37-457
 

Lithosite Image

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  Lithosite

Comments: Transparent nearly colorless lithosite in syenite rock.
Location: Vuonnemiok River, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Lithosite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.485:1:0.8242
Help on Cell Dimensions: Cell Dimensions: a = 15.197, b = 10.233, c = 8.435, Z = 2; beta = 90.21° V = 1,311.73 Den(Calc)= 2.49
Help on Crystal System: Crystal System: Monoclinic - Sphenoidal H-M Symbol (2) Space Group: P 21 (pseudo ORTH)
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.07(1), 3.26(0.84), 3.46(0.84),
 

Physical Properties of Lithosite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 2.51
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 Habit: Habit: Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Lithosite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2075,KPDmeas= 0.2058,KC= 0.2068
Ncalc = 1.51 - 1.52
Help on Optical Data: Optical Data: Biaxial (+), a=1.51, b=1.513, g=1.527, bire=0.0170, 2V(Calc)=52, 2V(Meas)=47.
Help on Pleochroism (x): Pleochroism (x): nearly colorless.
Help on Pleochroism (y): Pleochroism (y): nearly colorless.
Help on Pleochroism (z): Pleochroism (z): pale rose.
 

Calculated Properties of Lithosite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.47 gm/cc
note: Specific Gravity of Lithosite =2.49 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PELithosite = 3.57 barns/electron
U=PELithosite x relectron= 8.82 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 340.36 (Gamma Ray American Petroleum Institute Units)
Concentration of Lithosite per GRapi unit = 0.29 (%)

Estimated Radioactivity from Lithosite - barely detectable

 

Lithosite Classification

Help on  Dana Class: Dana Class: 77.02.02.01 (77)Tectosilicate Zeolite group
  (77.02)related species
  (77.02.02)Dana Group
 
77.02.02.01 Lithosite K6Al4Si8O25•(H2O) P 21 (pseudo ORTH) 2
Help on  Strunz Class: Strunz Class: 09.GB.05 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GB -Chains of single connected 4-membered rings
 
09.GB.05 Ammonioleucite (NH4,K)AlSi2O6 I 41/a 4/m
 
09.GB.05 Analcime NaAlSi2O6•(H2O) P1 1
 
09.GB.05 Hsianghualite Ca3Li2Be3(SiO4)3F2 I 213 2 3
 
09.GB.05 Lithosite K6Al4Si8O25•(H2O) P 21 (pseudo ORTH) 2
 
09.GB.05 Leucite KAlSi2O6 I 41/a 4/m
 
09.GB.05 Pollucite (Cs,Na)2Al2Si4O12•(H2O) I a3d 4/m 3 2/m
 
09.GB.05 Wairakite CaAl2Si4O12•2(H2O) I2/a 2/m
 

Other Lithosite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Lithosite :
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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Print or Cut-and-Paste your Lithosite Specimen Label here :

Lithosite

K6Al4Si8O25•(H2O)
Dana No: 77.02.02.01 Strunz No: 09.GB.05
Locality:

 

Notes:

 

 
   
 


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