Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Borcarite

Big Photo

Snezhnoe B Deposit, Izvestkovyi Stream, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
© Pavel M. Kartashov

Show Borcarite Photos (4)
Formula:
Ca
 
4
Mg[(CO
 
3
)
 
2
|B
 
4
O
 
6
(OH)
 
6
]
System:TriclinicHardness:4
This page provides mineralogical data about Borcarite.

Classification of Borcarite

IMA status:Approved
Strunz 8th edition ID:5/H.13-10
Nickel-Strunz 10th (pending) edition ID:6.DA.40

6 : BORATES
D : Tetraborates
A : Neso-tetraborates
Dana 8th edition ID:27.1.3.1

27 : COMPOUND BORATES
1 : Miscellaneous
Hey's CIM Ref.:10.4.3

10 : Borates with other anions
4 : Borates with carbonate
mindat.org URL:http://www.mindat.org/min-723.html
Please feel free to link to this page.

Type Occurrence of Borcarite

Type Locality:Snezhnoe B Deposit, Izvestkovyi Stream, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
Year of Discovery:1965

Physical Properties of Borcarite

Hardness (Mohs):4

Crystallography of Borcarite

Crystal System:Triclinic

Optical Data of Borcarite

Type:Biaxial (-)
RI values: nα = 1.590 nβ = 1.651 nγ = 1.657
2V:Measured: 30° , Calculated: 32°
Maximum Birefringence:δ = 0.067

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

Chemical Properties of Borcarite

Formula:
Ca
 
4
Mg[(CO
 
3
)
 
2
|B
 
4
O
 
6
(OH)
 
6
]
Essential elements:B, C, Ca, H, Mg, O
All elements listed in formula:B, C, Ca, H, Mg, O

Relationship of Borcarite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.DA.10Borax
Na
 
2
[B
 
4
O
 
7
] · 10H
 
2
O
6.DA.15Tincalconite
Na
 
2
[B
 
4
O
 
7
] · 5H
 
2
O
6.DA.20Hungchaoite
Mg[B
 
4
O
 
7
] · 9H
 
2
O
6.DA.25Fedorovskite
Ca
 
2
(Mg,Mn
2+
 
)
 
2
[(OH)
 
6
|B
 
4
O
 
7
]
6.DA.25Roweite
Ca
 
2
Mn
2+
2
[(OH)
 
6
|B
 
4
O
 
7
]
6.DA.30Hydrochlorborite
Ca
 
4
B
 
8
O
 
15
Cl
 
2
·21H
 
2
O
6.DA.35Uralborite
Ca
 
2
[B
 
3
O
 
3
(OH)
 
5
·OB(OH)
 
3
]
6.DA.40Numanoite
Ca
 
4
Cu[(CO
 
3
)
 
2
|B
 
4
O
 
6
(OH)
 
6
]
Related Minerals - Hey's Index Grouping:

- +
10.4.1Canavesite
Mg
 
2
[CO
 
3
|HBO
 
3
] · 5H
 
2
O
10.4.2Carboborite
Ca
 
2
Mg[CO
 
3
|B(OH)
 
4
]
 
2
 · 4H
 
2
O
10.4.4Sakhaite
Ca
 
12
Mg
 
4
[Cl|(OH)
 
2
|(CO
 
3
)
 
4
|(BO
 
3
)
 
7
]
10.4.5Moydite-(Y)
Y[CO
 
3
|B(OH)
 
4
]
10.4.6Gaudefroyite
Ca
 
4
Mn
3+
2-3
[(O,OH)
 
3
|CO
 
3
|(BO
 
3
)
 
3
]

Other Names for Borcarite

Other Languages:
German:Borcarit
Japanese:硼灰石
Russian:Боркарит
Spanish:Borcarita

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 Borcarite

Reference List:American Mineralogist: 50: 2097.

Mineralogical Magazine: 59: 297-304.

Soviet Physics – Doklady: 20: 799-801.

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

Internet Links for Borcarite

Search Engines:
  • Look for Borcarite on Google
  • Look for Borcarite images on Google
    • External Links:
  • Look for Borcarite on Webmineral
  • Look for Borcarite on Athena Mineralogy
  • Look for Borcarite on Wikipedia
  • Look for Borcarite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Borcarite in the Natural History Museum (London) online catalogue
  • Borcarite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • rare and unusual minerals mainly crystallized
  • Search for - Borcarite - on e-Rocks Mineral Sales & Auctions
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Top quality minerals from Kristalle of California
  • Fine Minerals from Dan Weinrich Minerals
  • Buy from David K Joyce minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Find Borcarite on www.crystalclassics.co.uk
  • Edwards Minerals - Fine Specimens
  • Buy RARE Minerals from Rocks of Africa
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Borcarite specimens
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Borcarite

    (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
            • Bitchu-cho (Bicchu-cho)
    		Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Polar Yakutia
          • Dogdo River Basin
            • Tas-Khayakhtakh Range
              • Izvestkovyi Stream
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    http://maurice.strahlen.org/yakutia/yakutia.htm
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 16th Nov 2009 09:02:30