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Tongbaite

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Formula:
Cr3C2
Colour:
Brownish yellow
Lustre:
Metallic
Hardness:
Crystal System:
Orthorhombic
Name:
Named after its discovery locality, Liu village, Tongbai, Henan Province, China.
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Classification of TongbaiteHide

Approved
Approval Year:
1982
1.BA.15

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
A : Carbides
Dana 7th ed.:
1.1.26.1
1.1.17.1

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
2.4

2 : Carbides, Nitrides, Silicides and Phosphides

Physical Properties of TongbaiteHide

Metallic
Transparency:
Opaque
Colour:
Brownish yellow
Hardness:
8½ on Mohs scale

Chemical Properties of TongbaiteHide

Formula:
Cr3C2

Crystallography of TongbaiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.52 Å, b = 11.48 Å, c = 2.82 Å
Ratio:
a:b:c = 0.481 : 1 : 0.246
Unit Cell V:
178.70 ų (Calculated from Unit Cell)

Type Occurrence of TongbaiteHide

Synonyms of TongbaiteHide

Other Language Names for TongbaiteHide

German:Tongbait
Simplified Chinese:桐柏矿
Spanish:Tongbaita

Related Minerals - Nickel-Strunz GroupingHide

1.BA.05CoheniteFe3COrth.
1.BA.10Haxonite(Fe,Ni)23C6Iso. m3m (4/m 3 2/m) : Fm3m
1.BA.10Isovite(Cr,Fe)23C6Iso. m3m (4/m 3 2/m) : Fm3m
1.BA.20Khamrabaevite(Ti,V,Fe)C
1.BA.20Niobocarbide(Nb,Ta)CIso. m3m (4/m 3 2/m) : Fm3m
1.BA.20TantalcarbideTaCIso. m3m (4/m 3 2/m) : Fm3m
1.BA.25QusongiteWCHex. 6 m2 : P6m2
1.BA.30YarlongiteCr4Fe4NiC4Hex. 6mm : P63mc

Related Minerals - Dana Grouping (8th Ed.)Hide

1.1.17.8Garutiite(Ni,Fe,Ir)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

2.1MoissaniteSiCHex. 6mm : P63mc
2.2SinoiteSi2N2OOrth.
2.3OsborniteTiNIso. m3m (4/m 3 2/m) : Fm3m
2.5CarlsbergiteCrN
2.6SiderazotFe5N2Hex.
2.7GupeiiteFe3SiIso.
2.8XifengiteFe5Si3Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
2.9Khamrabaevite(Ti,V,Fe)C
2.10Haxonite(Fe,Ni)23C6Iso. m3m (4/m 3 2/m) : Fm3m
2.11CoheniteFe3COrth.
2.12Roaldite(Fe,Ni)4N
2.13Suessite(Fe,Ni)3Si
2.14Schreibersite(Fe,Ni)3PTet. 4 : I4
2.15Barringerite(Fe,Ni)2PHex. 6 m2 : P62m
2.16Perryite(Ni,Fe)5(Si,P)2Trig.

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 TongbaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tian Peixue, Fang Qingsong, Chen Keqiao, and Peng Zhizhong (1983): A study on tongbaite - A new mineral. Acta Mineralogica Sinica 3(4), 241-245 (in Chinese with English abstract). - American Mineralogist (1985), 70, 218 (abstract).
Chen Keqiao, Tian Peixue, Shi Nicheng, and Peng Zhizhong (1983): A study on tongbaite, Cr3C2 - A new mineral. Ziran Zazhi 6, 478-479.
Dai Ming-quan, Shi Ni-cheng, Ma Zhe-sheng, Xiong Ming, Bai Wen-ji, Fang Qing-song, Yan Bing-gang, and Yang Jing-sui (2004): Crystal structure determination of tongbaite. Acta Mineralogica Sinica 24(1), 1-6 (in Chinese with English abstract).

Internet Links for TongbaiteHide

Localities for TongbaiteHide

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)
 
  • Henan Province
    • Nanyang Prefecture
      • Tongbai Co.
Tian Peixue, Fang Qingsong, Chen Keqiao, and Peng Zhizhong (1983): Acta Mineralogica Sinica 3(4), 241-245.
http://www.encyclopedia.com/doc/1G1-130213802.html
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Isovsky District
Generalov M.E., Naumov V.A., Mokhov A.V., Trubkin N.V. (1998) Isovite (Cr,Fe)23C6 - a new mineral from the gold-platinum -bearing placiers of the Urals, - Zapiski VMO, 127(5), pp. 26-37 (in Russian).
Mineral and/or Locality  
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