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Borcarite

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About BorcariteHide

Formula:
Ca4Mg(B4O6(OH)6)(CO3)2
Hardness:
4
Crystal System:
Triclinic
Name:
Named in allusion to its composition, being a BORate and CARbonate.
This page provides mineralogical data about Borcarite.


Classification of BorcariteHide

Approved
6.DA.40

6 : BORATES
D : Tetraborates
A : Neso-tetraborates
27.1.3.1

27 : COMPOUND BORATES
1 : Miscellaneous
10.4.3

10 : Borates with other anions
4 : Borates with carbonate

Physical Properties of BorcariteHide

Hardness:

Optical Data of BorcariteHide

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

Formula:
Ca4Mg(B4O6(OH)6)(CO3)2
IMA Formula:
Ca4MgB4O6(CO3)2(OH)6

Crystallography of BorcariteHide

Crystal System:
Triclinic

Type Occurrence of BorcariteHide

Other Language Names for BorcariteHide

German:Borcarit
Japanese:硼灰石
Simplified Chinese:硼灰石
Spanish:Borcarita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cahnite71 photos of Borcarite associated with Cahnite on mindat.org.
Szaibélyite6 photos of Borcarite associated with Szaibélyite on mindat.org.
Numanoite2 photos of Borcarite associated with Numanoite on mindat.org.
Ludwigite1 photo of Borcarite associated with Ludwigite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

6.DA.10BoraxNa2(B4O5)(OH)4 · 8H2OMon. 2/m : B2/b
6.DA.15TincalconiteNa2(B4O7) · 5H2OTrig. 3 2 : R3 2
6.DA.20HungchaoiteMg(B4O7) · 9H2OTric. 1
6.DA.25FedorovskiteCa2Mg2B4O7(OH)6Orth. mmm (2/m 2/m 2/m) : Pbam
6.DA.25RoweiteCa2Mn2+2B4O7(OH)6Orth.
6.DA.30HydrochlorboriteCa4B8O15Cl2 · 21H2OMon.
6.DA.35UralboriteCa2[B3O3(OH)5 · OB(OH)3]Mon.
6.DA.40NumanoiteCa4Cu(B4O6(OH)6)(CO3)2Mon. 2/m : B2/m
6.DA.60Fontarnauite(Na,K)2(Sr,Ca) (SO4)[B5O8(OH)]·2H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

10.4.1CanavesiteMg2(HBO3)(CO3) · 5H2OMon.
10.4.2CarboboriteCa2Mg[B(OH)4]2(CO3)2 · 4H2OMon.
10.4.4SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2ClIso. m3m (4/m 3 2/m) : Fd3m
10.4.5Moydite-(Y)Y[B(OH)4](CO3)Orth. mmm (2/m 2/m 2/m) : Pbca
10.4.6GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BorcariteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 BorcariteHide

Localities for BorcariteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
        • Huanggang Fe-Sn deposit (Huanggangliang Mine; Huanggang Mine)
Ottens, B. and G. Neumeier (2012) The Huanggang Mine, Inner Mongolia, China. Mineralogical Record 43:529-563
      • Linxi Co.
        • Linxi
Ottens, B. & Bin, J. (2014): Seltene Boratmineralien aus der Inneren Mongolei, China. Lapis, 39 (7/8), 66-68.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71
Pakistan
 
  • Balochistan (Baluchistan)
    • Khuzdar District
BASHIR, E., NASEEM, S., SHEIKH, S. A., & KALEEM, M. (2009). Khuzdar Bölgesi (Belucistan, Pakistan) ndeki Kraubath tipi manyezit yataklarının mineralojisi. Yerbilimleri/Hacettepe Üniversitesi Yerbilimleri Uygulama ve Araştırma Merkezi Dergisi, 30(3), 169-180.
Russia (TL)
 
  • Eastern-Siberian Region
    • Sakha Republic (Yakutia)
      • Polar Yakutia
        • Dogdo River Basin
          • Tas-Khayakhtakh Range
            • Titovskoe B deposit
              • Izvestkovyi Stream
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Jeff Weissman collection
    • Transbaikalia (Zabaykalye)
      • Buriatia Republic (Buryatia)
        • Vitim Plateau
Handbook of Mineralogy
Mineral and/or Locality  
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