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Vimsite

Big Photo

Solongo B deposit, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
© Pavel M. Kartashov

Show Vimsite Photos (4)
Formula:
CaB
 
2
O
 
2
(OH)
 
4
System:MonoclinicColour:Colourless
Hardness:4
Name:Named after VIMS, the transliterated acronym for the All-Union Research Institute of Mineral Resources (Russia).
This page provides mineralogical data about Vimsite.

Classification of Vimsite

IMA status:Approved 1968
Strunz 8th edition ID:5/J.01-10
Nickel-Strunz 10th (pending) edition ID:6.BC.15

6 : BORATES
B : Diborates
C : Ino-diborates with triangles and/or tetrahedra
Dana 8th edition ID:25.1.5.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
1 : Monoborates
Hey's CIM Ref.:9.3.5

9 : Borates
3 : Borates of Ca and Sr
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Type Occurrence of Vimsite

Type Locality:Novofrolovskoye B-Cu deposit, Turjinsk, Turya river, Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk), Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia
Year of Discovery:1968

Physical Properties of Vimsite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless
Hardness (Mohs):4

Crystallography of Vimsite

Crystal System:Monoclinic
Cell Parameters:a = 10.02Å, b = 9.71Å, c = 4.44Å
β = 92°
Ratio:a:b:c = 1.032 : 1 : 0.457
Unit Cell Volume:V 431.72 ų (Calculated from Unit Cell)

Optical Data of Vimsite

Type:Biaxial (-)
RI values: nα = 1.585 nβ = 1.614 nγ = 1.614
2V:Measured: 28°
Maximum Birefringence:δ = 0.029

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:small

Chemical Properties of Vimsite

Formula:
CaB
 
2
O
 
2
(OH)
 
4
Essential elements:B, Ca, H, O
All elements listed in formula:B, Ca, H, O

Relationship of Vimsite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.BC.10Calciborite
Ca[B
 
2
O
 
4
]
6.BC.20Sibirskite
Ca
 
2
[B
 
2
O
 
5
] · H
 
2
O
6.BC.20Parasibirskite
Ca
 
2
[B
 
2
O
 
5
] · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
9.3.1Calciborite
Ca[B
 
2
O
 
4
]
9.3.2Sibirskite
Ca
 
2
[B
 
2
O
 
5
] · H
 
2
O
9.3.3Fabianite
CaB
 
3
O
 
5
OH
9.3.4Uralborite
Ca
 
2
[B
 
3
O
 
3
(OH)
 
5
·OB(OH)
 
3
]
9.3.6Olshanskyite
Ca
 
3
[OH|{B(OH)
 
4
}
 
2
]
 
2
9.3.7Frolovite
Ca[B(OH)
 
4
]
 
2
9.3.8Korzhinskite
CaB
 
2
O
 
4
·H
 
2
O
9.3.9Tyretskite
Ca
 
2
B
 
5
O
 
9
OH·H
 
2
O
9.3.10Nifontovite
CaB
 
2
O
 
4
·2.3H
 
2
O
9.3.12Inyoite
Ca(H
 
4
B
 
3
O
 
7
)(OH) · 4H
 
2
O
9.3.13Gowerite
Ca[B
 
5
O
 
8
(OH)][B(OH)
 
3
]·3H
 
2
O
9.3.14Colemanite
Ca[B
 
3
O
 
4
(OH)
 
3
] · H
 
2
O
9.3.15Pentahydroborite
CaB
 
2
O(OH)
 
6
 · 2H
 
2
O
9.3.16Hexahydroborite
Ca[B(OH)
 
4
]
 
2
 · 6H
 
2
O
9.3.17Meyerhofferite
Ca
 
2
(H
 
3
B
 
3
O
 
7
)
 
2
 · 4H
 
2
O
9.3.18Priceite
Ca
 
2
B
 
5
O
 
7
(OH)
 
5
·H
 
2
O
9.3.19Ginorite
Ca
 
2
B
 
14
O
 
23
·8H
 
2
O
9.3.20Probertite
NaCaB
 
5
O
 
7
(OH)
 
4
·3H
 
2
O
9.3.21Ulexite
NaCa[B
 
5
O
 
6
(OH)
 
6
] · 5H
 
2
O
9.3.22Hydroboracite
CaMg[B
 
3
O
 
4
(OH)
 
3
]
 
2
 · 3H
 
2
O
9.3.23Inderborite
CaMg(H
 
3
B
 
3
O
 
7
)
 
2
 · 8H
 
2
O
9.3.24Wardsmithite
Ca
 
5
Mg[B
 
4
O
 
7
]
 
6
 · 30H
 
2
O
9.3.25Henmilite
Ca
 
2
Cu[(OH)
 
2
|B(OH)
 
4
]
 
2
9.3.26Strontioborite
SrB
 
8
O
 
11
(OH)
 
4
9.3.27Veatchite
Sr
 
2
B
 
11
O
 
16
(OH)
 
5
·H
 
2
O
9.3.28Veatchite-A
Sr
 
2
B
 
11
O
 
16
(OH)
 
5
·H
 
2
O
9.3.29 P-Veatchite
9.3.30 Balavinskite
Sr
 
2
B
 
6
O
 
11
·4H
 
2
O
9.3.31Tunellite
SrB
 
6
O
 
9
(OH)
 
2
·3H
 
2
O
9.3.32Strontioginorite
(Sr,Ca)
 
2
B
 
14
O
 
23
·8H
 
2
O

Other Names for Vimsite

Synonyms:
IMA1968-034
Other Languages:
German:Vimsit
Russian:Вимсит
Spanish:Vimsita

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 Vimsite

Reference List:Doklady Akademii Nauk SSSR (1968): 182: 821-824.

American Mineralogist (1969): 54: 1219-1220.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Articles/Blogs about Vimsite

Internet Links for Vimsite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Vimsite details from Handbook of Mineralogy (PDF)
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    Localities for Vimsite

    (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
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
          • Vitim Plateau
    		[AmMin 85:1322]
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk)
            • Turya river
              • Turjinsk
    		D.P. Shaskin et al.: Doklady Acad. Nauk SSR 182:821-824 + 1402-1405 (1968)
    Mineral and/or Locality
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