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Frolovite

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Formula:
Ca[B(OH)
 
4
]
 
2
System:TriclinicHardness:
Name:Named after its discovery locality.
This page provides mineralogical data about Frolovite.

Classification of Frolovite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/G.09-10
Nickel-Strunz 10th (pending) edition ID:6.AC.20

6 : BORATES
A : Monoborates
C : B(O,OH)4, without and with additional anions; 1(T), 1(T)+OH, etc
Dana 8th edition ID:25.1.3.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
1 : Monoborates
Hey's CIM Ref.:9.3.7

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

Type Locality:Novofrolovskoye B-Cu deposit, Turjinsk, Turya river, Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk), Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia
Year of Discovery:1957

Physical Properties of Frolovite

Hardness (Mohs):

Crystallography of Frolovite

Crystal System:Triclinic

Optical Data of Frolovite

Type:Biaxial
RI values: nα = 1.563 nβ = 1.572 nγ = 1.586
2V:Measured: 70° , Calculated: 80°
Maximum Birefringence:δ = 0.023

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

Chemical Properties of Frolovite

Formula:
Ca[B(OH)
 
4
]
 
2
Simplified for copy/paste:Ca[B(OH)4]2
Essential elements:B, Ca, H, O
All elements listed in formula:B, Ca, H, O

Relationship of Frolovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.AC.05Sinhalite
MgAl(BO
 
4
)
6.AC.10Pseudosinhalite
Mg
 
2
Al
 
3
(BO
 
3
)
 
2
(OH)O
 
3
6.AC.15Behierite
(Ta
5+
 
,Nb
5+
 
)(BO
 
4
)
6.AC.15Schiavinatoite
(Nb,Ta)(BO
 
4
)
6.AC.25Hexahydroborite
Ca[B(OH)
 
4
]
 
2
· 6H
 
2
O
6.AC.30Henmilite
Ca
 
2
Cu[B(OH)
 
4
]
 
2
(OH)
 
4
6.AC.35Bandylite
Cu[B(OH)
 
4
]Cl
6.AC.40Teepleite
Na
 
2
[B(OH)
 
4
]Cl
6.AC.45Moydite-(Y)
Y[B(OH)
 
4
](CO
 
3
)
6.AC.50Carboborite
Ca
 
2
Mg[B(OH)
 
4
]
 
2
(CO
 
3
)
 
2
· 4H
 
2
O
6.AC.55Sulfoborite
Mg
 
3
[B(OH)
 
4
]
 
2
(SO
 
4
)(OH,F)
 
2
6.AC.60Lüneburgite
Mg
 
3
[B
 
2
(OH)
 
6
](PO
 
4
)
 
2
· 6H
 
2
O
6.AC.65Seamanite
Mn
2+
3
[B(OH)
 
4
](PO
 
4
)(OH)
 
2
6.AC.70Cahnite
Ca
 
2
[B(OH)
 
4
](AsO
 
4
)
Related Minerals - Hey's Index Grouping:

- +
9.3.1Calciborite
Ca(B
 
2
O
 
4
)
9.3.2Sibirskite
Ca
 
2
(HB
 
2
O
 
5
)(OH)
9.3.3Fabianite
CaB
 
3
O
 
5
OH
9.3.4Uralborite
Ca
 
2
[B
 
3
O
 
3
(OH)
 
5
· OB(OH)
 
3
]
9.3.5Vimsite
CaB
 
2
O
 
2
(OH)
 
4
9.3.6Olshanskyite
Ca
 
3
[B(OH)
 
4
]
 
4
(OH)
 
2
9.3.8Korzhinskite
Ca(B
 
2
O
 
4
) · H
 
2
O
9.3.9Tyretskite
Ca
 
2
B
 
5
O
 
9
OH · H
 
2
O
9.3.10Nifontovite
Ca
 
3
B
 
6
O
 
6
(OH)
 
12
(H
 
2
O)
 
2
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[B(OH)
 
4
]
 
2
(OH)
 
4
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 Frolovite

Synonyms:
Frolowite
Other Languages:
German:Frolovit
Frolowit
Russian:Фроловит
Spanish:Frolovita
Frolowita

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 Frolovite

Reference List:

- +
American Mineralogist (1958): 43: 385.

Soviet Physics – Doklady: 21: 471-473.

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

Internet Links for Frolovite

Search Engines:
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  • External Links:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Frolovite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Frolovite

    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.
    (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.
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
          • Takahashi City
            • Bitchu-cho-fuka (Bicchu-cho-fuka)
    Mineralogical Record: 27: 306.; Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71; Mineralogical Journal Vol. 17 (1994) , No. 7 pp 330-337
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Vitim Plateau
    [AmMin 85:1322]; American Mineralogist, Volume 87, pages 1509–1513, 2002; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk)
            • Turya river
              • Turjinsk
    [Zap. Vses. Mineral. Obshch., 86, 622–625 (in Russian); Amer. Mineral. (1958) 43, 385–386; AmMin 85:1322]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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