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Sokolovaite

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Sokolovait
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Sokolovait
eingebettetes weiß/farbloses Aggregat von Sokolovait (mit wenig Quarz am linken Rand, nahezu nicht erkennbar), Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB ~ 2,5 cm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Tadschikistan/Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij)/Dara-i-Pioz (Darai-Pioz)
Mineral: Sokolovaite
Image: 1591124628
License: Usage for Mineralienatlas project only
Sokolovait

eingebettetes weiß/farbloses Aggregat von Sokolovait (mit wenig Quarz am linken Rand, nahezu nicht erkennbar), Dara-i-Pioz Gletscher, Tien Shan, Tadschikistan; BB 2,5 cm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-02
Locality: Dara-i-Pioz (Darai-Pioz) / Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij) / Tadschikistan

Collectors Summary

Hardness (Mohs) 3.75
Cleavages vollkommen (001)
Crystal System monoklin,

Chemism

Chemical formula

CsLi2AlSi4O10F2

Additional chem. information

Glimmer-Gruppe

Chemical composition

Aluminium, Cäsium, Lithium, Silicium, Fluor, Sauerstoff

Unit weight: 484.1026167 u; Number of atoms in the formula: 20

Info

Empirical formula:

CsLi2AlSi4O10F2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Lithium

Li

2.87

2

10.00

6.9412000

13.8824000
Oxygen

O

33.05

10

50.00

15.9994300

159.9943000
Fluorine

F

7.85

2

10.00

18.9984033

37.9968065
Aluminium

Al

5.57

1

5.00

26.9815382

26.9815382
Silicon

Si

23.21

4

20.00

28.0855300

112.3421200
Caesium

Cs

27.45

1

5.00

132.9054520

132.9054520

Analysis wt%

SiO2 : 49.97, Al2O3 : 10.44, Li2O : 6.09, Cs2O : 27.60, F : 7.92 (Ref: New Data on Minerals, (Monatshefte) 2006)

Strunz 9th edition incl. updates

9.EC.20

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
20:Phlogopit-Gruppe

Lapis Classification

VIII/H.11-015

VIII: SILIKATE
H: Schichtsilikate
11: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Lithionit/Biotit-Reihe

Classification by Hölzel

9.ED.290

9: SILICATES
E: Phyllosilicates
D: Biotite-Group

Dana 8th edition

71.02.02b.08b

71: Phyllosilicate Minerals
02: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 2:1 Layers
02b: Mica Group (Biotite subgroup)

IMA status

anerkannt 2004

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Mica group  ⇒ True micas

Optical Properties

max. Birefringence

0.013
Birefringence chart\! Sokolovaite title=Birefringence chart Sokolovaite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.554

RI value β

1.566

RI value γ / ε

1.567

Ri mean

1.562

2V angle

Biaxial (-) 32°

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

5.182

Cell parameters b (Å)

9.005

Cell parameters c (Å)

10.692

Cell parameters a/b or c/a

0.575

Cell parameters c/b

1.187

Cell parameters α

90°

Cell parameters β

99.82

Cell parameters γ

90°

Z

2

Volumne (ų)

491.62

X-Ray Powder Diffraction

3.897(49), 3.682(80), 3.418(65), 3.174(100), 2.980(41), 2.634(79), 2.582(66), 2.107(94)
XRD chart Sokolovaite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.75

VHN (Hardness Vickers)

154 (10g)

Density (g/cm³)

3.25

3.27 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (001)

(Co-)Type locality

(Co-)Type locality

Tadschikistan/Republik-unterstellte Gebiete (Nohijahoi tobei Dschumhurij)/Dara-i-Pioz (Darai-Pioz)

References

Commission on New Minerals, Nomenclature and Classification Publication pending

IMA group assignments

 
Mica group
 
 
 

 
 
True micas
 
 
 

 
 
 
Aluminoceladonite
K(Mg,Fe2+)Al[(OH)2|Si4O10]
monoklin
 

 
 
 
Annite
KFe2+3(Si3Al)O10(OH,F)2
monoklin
C2/m

 
 
 
Aspidolite
NaMg3(AlSi3)O10(OH)2
monoklin
C2/m

 
 
 
Boromuscovite
KAl2(Si3B)O10(OH,F)2
monoklin
C2/m

 
 
 
Celadonite
K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2
monoklin
C2

 
 
 
Chromphyllite
K(Cr,Al)2[(OH,F)2|AlSi3O10]
monoklin
C2/c

 
 
 
Eastonite
KMg2Al[(OH)2|Al2Si2O10]
monoklin
C2

 
 
 
Ephesite
NaLiAl2(Al2Si2)O10(OH)2
monoklin
Cc

 
 
 
Ferroaluminoceladonite
K(Fe2+,Mg)(Al,Fe3+)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Ferroceladonite
K(Fe2+,Mg)(Fe3+,Al)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Fluorannite
KFe32+[(F,OH)2|AlSi3O10]
monoklin
C2/m

 
 
 
Ganterite
(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]
monoklin
C2/c

 
 
 
Hendricksite
K(Zn,Mn)3Si3AlO10(OH)2
monoklin
C2/m

 
 
 
Masutomilite
K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2
monoklin
C2

 
 
 
Montdorite
KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]
monoklin
C2/m

 
 
 
Muscovite
KAl2(Si3Al)O10(OH,F)2
monoklin
C2/c

 
 
 
Nanpingite
CsAl2(Si,Al)4O10(OH,F)2
monoklin
C2/c

 
 
 
Norrishite
KLiMn3+2Si4O12
monoklin
C2/m

 
 
 
Paragonite
NaAl2(Si3Al)O10(OH)2
monoklin
C2/c

 
 
 
Phlogopite
KMg3(Si3Al)O10(F,OH)2
monoklin
C2/m

 
 
 
Polylithionite
KLi2AlSi4O10(F,OH)2
monoklin
C2/m

 
 
 
Preiswerkite
NaMg2Al3Si2O10(OH)2
monoklin
C2/m

 
 
 
Roscoelite
K(V,Al,Mg)2AlSi3O10(OH)2
monoklin
C2/m

 
 
 
Shirozulite
K(Mn2+,Mg)3[(OH)2|AlSi3O10]
 
 

 
 
 
Siderophyllite
KFe22+Al(Al2Si2)O10(F,OH)2
monoklin
C2/m

 
 
 
Sokolovaite
CsLi2AlSi4O10F2
monoklin
 

 
 
 
Tainiolite
KLiMg2Si4O10F2
monoklin
C/2m

 
 
 
Tetraferriannite
KFe2+3(Si3Fe3+)O10(OH)2
monoklin
C2/m

 
 
 
Tetraferriphlogopite
KMg3[(F,OH)2|(Al,Fe3+)Si3O10]
monoklin
C2/m

 
 
 
Tobelite
(NH4,K)Al2(Si3Al)O10(OH)2
monoklin
C2/m

 
 
 
Trilithionite
KLi1.5Al1.5[F2|AlSi3O10]
monoklin
C2/m

 
 
 
Yangzhumingite
KMg2.5Si4O10F2
monoklin
C2/m

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Actuality: 29. Sep 2023 - 20:36:28

Other languages

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English

Sokolovaite

Russian

Соколоваит

CNMNC (IMA)-Number

IMA 2004-012

CNMNC symbol

Symbol

Sok

Locations with GPS information

IDs

GUSID (Global unique identifier short form) -oXzW7s3QkukSebRXEddLw
GUID (Global unique identifier) 5BF385FA-37BB-4B42-A449-E6D15C475D2F
Database ID 4450