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Altisite

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Formula:
Na
 
3
K
 
6
Ti
 
2
Al
 
2
Si
 
8
O
 
26
Cl
 
3
System:MonoclinicColour:Colourless
Lustre:VitreousHardness: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

IMA status:Approved
Strunz 8th edition ID:8/G.09-05
Nickel-Strunz 10th (pending) edition ID:9.DP.40

9 : SILICATES (Germanates)
D : Inosilicates
P : Transitional ino-phyllosilicate structures
Dana 8th edition ID:74.3.3.1

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

Type Locality:Olenii Creek (Olenii Ruchei; Oleny Ruchei), Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1994

Physical Properties of Altisite

Lustre: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°
Maximum Birefringence:δ = 0.053

Chart 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:
Na
 
3
K
 
6
Ti
 
2
Al
 
2
Si
 
8
O
 
26
Cl
 
3
Simplified for copy/paste:Na3K6Ti2Al2Si8O26Cl3
Essential elements:Al, Cl, K, Na, O, Si, Ti
All elements listed in formula:Al, Cl, K, Na, O, Si, Ti

Relationship of Altisite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DP.05Meliphanite
(Ca,Na)
 
2
(Be,Al)[Si
 
2
O
 
6
(OH,F)]
9.DP.15Leucosphenite
BaNa
 
4
Ti
 
2
B
 
2
Si
 
10
O
 
30
9.DP.20Prehnite
Ca
 
2
Al
 
2
Si
 
3
O
 
10
(OH)
 
2
9.DP.25Amstallite
CaAl(Si,Al)
 
4
O
 
8
(OH)
 
4
· (H
 
2
O,Cl)
9.DP.30Kvanefjeldite
Na
 
4
(Ca,Mn)(Si
 
3
O
 
7
)
 
2
(OH)
 
2
9.DP.35Lemoynite
(Na,K)
 
2
CaZr
 
2
Si
 
10
O
 
26
· 5H
 
2
O
9.DP.35Natrolemoynite
Na
 
4
Zr
 
2
Si
 
10
O
 
26
•9H
 
2
O

Other Names for Altisite

Synonyms:
IMA1993-055
Other Languages:
German:Altisit
Russian:Алтисит
Spanish:Altisita

Other Information

Health Warning: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

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  • External Links:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Localities for Altisite

    (TL) indicates type locality. ? 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
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