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Sakhaite

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About SakhaiteHide

Formula:
Ca12Mg4(BO3)7(CO3)4(OH)2Cl
Colour:
Colourless, gray to grayish white
Lustre:
Greasy
Hardness:
5
Crystal System:
Isometric
Name:
From Sakha, the name for Siberia in the language of Yakutsk.
Structurally related to harkerite. Also chemically and structurally (at least in terms of the crystal system) related to UM1990-59-SiO:AlBCHMg.


Classification of SakhaiteHide

Approved
Approval Year:
1965
6.AB.65

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
27.1.4.1

27 : COMPOUND BORATES
1 : Miscellaneous
10.4.4

10 : Borates with other anions
4 : Borates with carbonate

Physical Properties of SakhaiteHide

Greasy
Transparency:
Transparent
Colour:
Colourless, gray to grayish white
Hardness:

Chemical Properties of SakhaiteHide

Formula:
Ca12Mg4(BO3)7(CO3)4(OH)2Cl
IMA Formula:
Ca48Mg16Al(SiO3OH)4(CO3)16(BO3)28 · (H2O)3(HCl)3

Crystallography of SakhaiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 14.685(3) Å
Unit Cell V:
3,166.81 ų (Calculated from Unit Cell)
Z:
4

Type Occurrence of SakhaiteHide

Synonyms of SakhaiteHide

Other Language Names for SakhaiteHide

German:Sakhait
Russian:Сахаит
Simplified Chinese:碳硼钙镁石
萨哈石
Spanish:Sakhaita
Traditional Chinese:碳硼鈣鎂石
薩哈石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Ludwigite6 photos of Sakhaite associated with Ludwigite on mindat.org.
Olshanskyite5 photos of Sakhaite associated with Olshanskyite on mindat.org.
Kurchatovite2 photos of Sakhaite associated with Kurchatovite on mindat.org.
Magnetite1 photo of Sakhaite associated with Magnetite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

6.AB.05HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AB.10BerboriteBe2(BO3)(OH,F) · H2OTrig.
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3Hex. 6/m : P63/m
6.AB.20Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth.
6.AB.25KarliteMg7(BO3)3(OH,Cl)5Orth.
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
6.AB.30BonaccorditeNi2Fe3+(BO3)O2Orth.
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth.
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth.
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
6.AB.40BlatteriteSb5+(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth.
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex.
6.AB.50HydroxylboriteMg3(BO3)(OH)3Hex. 6/m : P63/m
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)Orth. mm2 : Pna21
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.80JacquesdietrichiteCu2(H2BO3)(OH)3Orth. mmm (2/m 2/m 2/m) : Pmna
6.AB.85PainiteCaZrAl9(BO3)O15Hex.

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.
10.4.3BorcariteCa4Mg(B4O6(OH)6)(CO3)2Tric.
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 SakhaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ostrovskaya I.V., Pertsev N.N., Nikitina I.B. (1966) Sakhaite, a new carbonate-borate of calcium and magnesium. ZVMO, 95(2), 193-202 (in Russian)
American Mineralogist (1966): 51: 1817.
Giuseppetti, G., Mazzi, F., Tadini, C. (1977): The crystal structure of harkerite. American Mineralogist 62, 263-272.
Soviet Physics – Doklady: 23: 225-226.
Mineralogical Magazine (1990): 54: 105.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Xiangwen Liu, Guangming Yang, Huamin Zou, Jing Qu, and Wenxia Zhao (2004): Electron microscopy study of the sakhaite from endogenous borate deposit in Hunan, China. Science in China, Series D (Earth Sciences), 47(3), 232-238.
Yakubovich O. V., Still I. M., Gavrilenko P. G., Urusov V. S. (2005): Crystal Structure of Sakhaite from the Solongo Deposit in Connection with the Crystallochemical Interpretation of the Sakhaite-Harkerite Mineral Series. Crystallography Reports, 50, 194.

Internet Links for SakhaiteHide

Localities for SakhaiteHide

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
 
  • Hunan Province
    • Hengyang Prefecture
      • Changning Co.
        • Dayishan Sn-polymetallic ore field
Rongwen Zhou and Zhishun Chen (1991): Geology and Prospecting 27(3), 29-31
Yang Guangming, Peng Zhizhong, and Pan Zhaolu (1985): Acta Mineralogica Sinica 5(2), 97-101; Aleksandrov, S.M. (1998): Geochemistry of skarn and ore formation in dolomites. VSP (Utrecht, Tokyo), 300 pp.
Namibia
 
  • Otjozondjupa Region
    • Grootfontein District
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
North Korea
 
  • North Hwanghae Province
    • Suan-gun
Handbook of Mineralogy, v5
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Zheleznogorsk (Korshunikha)
Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.; Mazurov et al (2007) Geology of Ore Deposits, 49, 271–284.
    • Sakha Republic (Yakutia)
      • Polar Yakutia
        • Dogdo River Basin
          • Tas-Khayakhtakh Range
I.V. Ostrovskaya, N.N. Pertsev, I.B. Nikitina: ZVMO 95:193-202 (1966); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
              • Izvestkovyi Stream
Galuskina I.O., Kadiyski M., Armbruster T., Galuskin E.V., Pertsev N.N., Dzierzanowski P., Wrzalik R. (2008) A new natural phase in the system Mg2SiO4-Mg2BO3F-Mg2BO3(OH): composition, paragenesis and structure of OH-dominant pertsevite, - Eur. J. Mineral., 20, p. 951-964.
    • 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
Mineral and/or Locality  
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