Mineralogy Database

Altisite Mineral Data

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General Altisite Information

Help on Chemical  Formula: Chemical Formula: Na3K6Ti2Al2Si8O26Cl3
Help on Composition: Composition: Molecular Weight = 1,200.31 gm
   Potassium  19.54 %  K    23.54 % K2O
   Sodium      5.75 %  Na    7.75 % Na2O
   Titanium    7.98 %  Ti   13.31 % TiO2
   Aluminum    4.50 %  Al    8.49 % Al2O3
   Silicon    18.72 %  Si   40.05 % SiO2
   Chlorine    8.86 %  Cl    8.86 % Cl
                -   %   Cl   -2.00 % -O=Cl2   
   Oxygen     34.66 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3K6Ti2Al2(Si8O26)Cl3
Help on Environment: Environment: In the interstices of pectolite crystals in a hyperagpaitic pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: In a drill core from the Oleny Stream apatite deposit in the southeastern part of the Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for the elements Al, Ti, and Si in the composition.
Help on Name Pronunciation: Name Pronunciation: Altisite Say ALTISITE
Help on Synonym: Synonym: ICSD 79851
  PDF 49-1836

Altisite Image

Click Here for Larger   Image in a New Browser Window Images:
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Comments: Small speck of altisite in the center of the sticky tape.
Location: Olenii Ruchei Apatite Deposit, Khibiny Alkaline Massif, Kola Peninsula, Russia. Scale: Graph Paper 1 mm.
© Sergey Vasiliev / Systematic Mineralogy

Altisite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6354:1:0.5612
Help on Cell Dimensions: Cell Dimensions: a = 10.37, b = 16.32, c = 9.16, Z = 2; beta = 105.6° V = 1,493.12 Den(Calc)= 2.67
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.049(1), 2.835(0.84), 8.22(0.71),

Physical Properties of Altisite

Help on Cleavage: Cleavage: None
Help on Color: Color: White.
Help on Density: Density: 2.64 - 2.67, Average = 2.65
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Altisite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2347,KPDmeas= 0.236,KC= 0.242
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Biaxial (+), a=1.601, b=1.625, g=1.654, bire=0.0530, 2V(Calc)=86, 2V(Meas)=85. Dispersion weak, r < v.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.

Calculated Properties of Altisite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.60 gm/cc
note: Specific Gravity of Altisite =2.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEAltisite = 4.79 barns/electron
U=PEAltisite x relectron= 12.45 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 276.29 (Gamma Ray American Petroleum Institute Units)
Concentration of Altisite per GRapi unit = 0.36 (%)

Estimated Radioactivity from Altisite - barely detectable


Altisite Classification

Help on  Dana Class: Dana Class: (74)Phyllosilicate Modulated Layers
  (74.03)with joined strips
  (74.03.03)Altisite/lemoynite Altisite Na3K6Ti2Al2Si8O26Cl3 C 2/m 2/m Lemoynite (Na,K)2CaZr2Si10O26•5-6(H2O) C 2/m 2/m Natrolemoynite! Na4Zr2Si10O26•9(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.DP.40 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DP -Transitional ino-phyllosilicate structures
09.DP.40 Altisite Na3K6Ti2Al2Si8O26Cl3 C 2/m 2/m

Other Altisite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Altisite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

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Dana No: Strunz No: 09.DP.40





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