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Altisite

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Formula:
Na3K6Ti2Al2Si8O26Cl3
System:
Monoclinic
Colour:
Colourless
Lustre:
Vitreous
Hardness:
6
Name:
The name is derived from the elements Al, Ti, and Si in the composition.
This page provides mineralogical data about Altisite.

Classification of Altisite

Approved
9.DP.40

9 : SILICATES (Germanates)
D : Inosilicates
P : Transitional ino-phyllosilicate structures
74.3.3.1

74 : PHYLLOSILICATES Modulated Layers
3 : Modulated Layers with joined strips
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Type Occurrence of Altisite

Year of Discovery:
1994

Physical Properties of Altisite

Vitreous
Colour:
Colourless
Streak:
White
Hardness (Mohs):
6

Crystallography of Altisite

Crystal System:
Monoclinic
Cell Parameters:
a = 10.36Å, b = 16.31Å, c = 9.13Å
β = 105.34°
Ratio:
a:b:c = 0.635 : 1 : 0.56
Unit Cell Volume:
V 1,487.75 ų (Calculated from Unit Cell)

Optical Data of Altisite

Type:
Biaxial (+)
RI values:
nα = 1.601 nβ = 1.625 nγ = 1.654
2V:
Measured: 85° , Calculated: 86°
Max Birefringence:
δ = 0.053
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak

Chemical Properties of Altisite

Formula:
Na3K6Ti2Al2Si8O26Cl3
Essential elements:
All elements listed in formula:

Relationship of Altisite to other Species

9.DP.05Meliphanite(Ca,Na)2(Be,Al)[Si2O6(OH,F)]
9.DP.15LeucospheniteBaNa4Ti2B2Si10O30
9.DP.20PrehniteCa2Al2Si3O10(OH)2
9.DP.25AmstalliteCaAl(Si,Al)4O8(OH)4 · (H2O,Cl)
9.DP.30KvanefjelditeNa4(Ca,Mn)(Si3O7)2(OH)2
9.DP.35Lemoynite(Na,K)2CaZr2Si10O26 · 5H2O
9.DP.35NatrolemoyniteNa4Zr2Si10O26•9H2O

Other Names for Altisite

Name in Other Languages:
German:Altisit
Spanish:Altisita

Other Information

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 Altisite

Reference List:
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva : 123(6): 82-86.

European Journal of Mineralogy: 7: 537-546.

Mineralogical Record: 27: 301.

Internet Links for Altisite

Localities for Altisite

(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
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
ZVMO (1994) 123/6, 82-86; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
www.koeln.netsurf.de/~w.steffens/lovo.htm
Mineral and/or Locality  
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