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Byzantievite

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Formula:
Ba
 
5
(Ca,REE,Y)
 
22
(Ti,Nb)
 
18
(SiO
 
4
)
 
4
[(PO
 
4
, SiO
 
4
)]
 
4
(BO
 
3
)
 
9
O
 
22
[(OH),F]
 
43
(H
 
2
O)
 
1.5
System:Trigonal
This page provides mineralogical data about Byzantievite.

Classification of Byzantievite

IMA status:Approved 2009
mindat.org URL:http://www.mindat.org/min-37645.html
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Type Occurrence of Byzantievite

Type Locality:Darai-Pioz (Dara-i-Pioz; Dara-Pioz) Glacier, Alai (Alayskiy) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan

Crystallography of Byzantievite

Crystal System:Trigonal
Class (H-M):3 - Pyramidal
Space Group:R3
Cell Parameters:a = 9.1202(2) Å, c = 102.145(5) Å
Ratio:a:c = 1 : 11.2
Unit Cell Volume:V 7,357.94 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
4.02 (2)
3.95 (2)
3.112 (10)
2.982 (4)
2.908 (2)
2.885 (2)
2.632 (2)
2.127 (2)

Chemical Properties of Byzantievite

Formula:
Ba
 
5
(Ca,REE,Y)
 
22
(Ti,Nb)
 
18
(SiO
 
4
)
 
4
[(PO
 
4
, SiO
 
4
)]
 
4
(BO
 
3
)
 
9
O
 
22
[(OH),F]
 
43
(H
 
2
O)
 
1.5
Essential elements:B, Ba, Ca, H, O, P, Si, Ti
All elements listed in formula:B, Ba, Ca, F, H, Nb, O, P, Si, Ti, Y

Other Names for Byzantievite

Synonyms:
IMA2009-001
Other Languages:
Bengali:Byzantievite

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 Byzantievite

Reference List:

- +
Sokolova, E., et al. (2009): Byzantievite, the first Silicate-Borate-Phosphate Mineral. Acta Cryst. A65, s47-s48 (2009) [abstract]

Internet Links for Byzantievite

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  • American Mineralogist Crystal Structure Database
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    • Localities for Byzantievite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (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.
    Kyrgyzstan
     
    • Osh Oblast
      • Alai (Alay) Range
        • Sokh Valley
          • Upper Khodzhaachkan River
    		Leonid A. Pautov data
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alai (Alayskiy) Range
    		IMA Approvals - April 2009
    Mineral and/or Locality
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