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Qilianshanite

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About QilianshaniteHide

Formula:
NaHCO3 · H3BO3 · 2H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
2
Crystal System:
Monoclinic
Name:
Named after its discovery locality in the Qilian Mountains (Qilian Shan in Chinese) in Qinghai Province.
This page provides mineralogical data about Qilianshanite.


Classification of QilianshaniteHide

Approved
Approval Year:
1992
6.H0.55

6 : BORATES
H : Unclassified borates
0 :
17.1.13.1

17 : COMPOUND CARBONATES
1 : Miscellaneous

Physical Properties of QilianshaniteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Hardness:

Optical Data of QilianshaniteHide

Type:
Biaxial (-)
RI values:
nα = 1.351 nβ = 1.459 nγ = 1.486
2V:
Measured: 50° , Calculated: 48°
Max Birefringence:
δ = 0.135
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of QilianshaniteHide

Formula:
NaHCO3 · H3BO3 · 2H2O
IMA Formula:
NaH4(CO3)(BO3) · 2H2O
Common Impurities:
Ca

Crystallography of QilianshaniteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 16.11 Å, b = 6.92 Å, c = 6.73 Å
β = 100.46°
Ratio:
a:b:c = 2.328 : 1 : 0.973
Unit Cell V:
737.80 ų (Calculated from Unit Cell)

Type Occurrence of QilianshaniteHide

Synonyms of QilianshaniteHide

Other Language Names for QilianshaniteHide

Simplified Chinese:祁连山石
Traditional Chinese:祁連山石

Related Minerals - Nickel-Strunz GroupingHide

6.H0.10Braitschite-(Ce)(Ca,Na2)7(Ce,La)2B22O43 · 7H2OHex.
6.H0.15SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
6.H0.20IquiqueiteK3Na4Mg(CrO4)B24O39(OH) · 12H2OHex.
6.H0.25WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
6.H0.35HalurgiteMg2[B4O7]2 · 5H2OMon.
6.H0.40EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
6.H0.45VitimiteCa6[(OH)14|SO4|B14O19] · 5H2OMon.
6.H0.50CanavesiteMg2(HBO3)(CO3) · 5H2OMon.

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 QilianshaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Shiqing Luo, Jian'an Lu, Liben Wang, and Jingqing Zhu (1993): Qilianshanite - A new boric carbonate mineral. Acta Mineralogica Sinica 13(2), 97-101 (in Chinese with English abstract). - New Minerals (1997), New Minerals 1990-1994 (abstract).
American Mineralogist (1994), 79, 765.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for QilianshaniteHide

Localities for QilianshaniteHide

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 (TL)
 
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Delhi Co. (Delingha Co.)
        • Yashatu
Shiqing Luo, Jian'an Lu, Liben Wang, and Jingqing Zhu (1993): Acta Mineralogica Sinica 13(2), 97-101
Norway
 
  • Telemark
    • Porsgrunn
      • Mørje
        • Sagåsen
Nordrum, F.S. (2005): Nyfunn av mineraler i Norge 2004-2005. Norsk Bergverksmuseum Skrift. 30: 117-124; Nordrum, F.S. (2006): Nyfunn av mineraler i Norge 2005-2006. Norsk Bergverksmuseum Skrift. 33: 56-62
USA
 
  • Oregon
    • Lake Co.
Gunnar Färber
Mineral and/or Locality  
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