Kenyaite Mineral Data

Kenyaite Mineral Data
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General Kenyaite Information

Help on Chemical Formula: Chemical Formula: Na2Si22O41(OH)8•6(H2O)
Help on Composition: Composition: Molecular Weight = 1,563.99 gm
   Sodium     2.94 %  Na    3.96 % Na2O
   Silicon   39.51 %  Si   84.52 % SiO2
   Hydrogen   1.29 %  H    11.52 % H2O
   Oxygen    56.26 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Si22O41(OH)8•6(H2O)
Help on Environment: Environment: Formed by the leaching of magadiite, and from saline brines in playa evaporite alkaline lake deposits.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Lake Magadi, Kenya. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the country of origin.
Help on Name Pronunciation: Name Pronunciation: Kenyaite Say KENYAITE
 

Kenyaite Image

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Kenyaite

Comments: Compact granular massive kenyaite possibly with other phases.
Location: Lake Magadi, Rift Valley Province, Kenya. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kenyaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.395:1:0.3504
Help on Cell Dimensions: Cell Dimensions: a = 7.79, b = 19.72, c = 6.91, Z = 1; beta = 95.9° V = 1,055.88 Den(Calc)= 2.46
Help on Crystal System: Crystal System: MonoclinicSpace Group: P?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 19.68(1), 3.428(0.85), 9.925(0.5),
 

Physical Properties of Kenyaite

Help on Color: Color: White.
Help on Density: Density: 3.18
Help on Habit: Habit: Concretionary - Rounded massive fine-grained materials.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Luminescence: Luminescence: Sometimes Fluorescent, Short UV=very pale yellow.
Help on Streak: Streak: white
 

Optical Properties of Kenyaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.322 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.123 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1951,KPDmeas= 0.1509,KC= 0.2225
Ncalc = 1.55 - 1.71
Help on Optical Data: Optical Data: Biaxial (+), a=1.48, 2V(Meas)=small.
 

Calculated Properties of Kenyaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.49 gm/cc
note: Specific Gravity of Kenyaite =2.46 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKenyaite = 1.59 barns/electron
U=PEKenyaite x rElectron Density= 3.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kenyaite is Not Radioactive
 

Kenyaite Classification
Help on Dana Class: Dana Class: 78.07.07.01 (78)Unclassified silicates
  (78.07)wholly unclassified silicates
  (78.07.07)Dana Group
 
78.07.07.01 Kenyaite Na2Si22O41(OH)8•6(H2O) P? Mono
Help on Strunz Class: Strunz Class: 09.HA.10 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HA -With alkali and alkali-earth Elements
 
09.HA.10 Kenyaite Na2Si22O41(OH)8•6(H2O) P? Mono
 

Other Kenyaite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Kenyaite :
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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Ask about Kenyaite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Kenyaite

Na2Si22O41(OH)8•6(H2O)
Dana No: 78.07.07.01 Strunz No: 09.HA.10
Locality:

 

Notes: