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Tantalcarbide

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Formula:
TaC
System:
Isometric
Colour:
Bronze
Lustre:
Metallic
Hardness:
6 - 7
Name:
Re-named in 1966 by Hugo Strunz in reference to its composition: tantalum and carbon. Originally thought to be native tantalum by Paul Walther in 1909. Re-named tantalum carbide in 1926 by Victor Goldschmidt. The composition was verified in 1962 by Clifford Frondel.
This page provides mineralogical data about Tantalcarbide.

Classification of Tantalcarbide

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
1.BA.20

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
A : Carbides
1.1.29.2

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
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First Recorded Occurrence of Tantalcarbide

Physical Properties of Tantalcarbide

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Bronze
Hardness (Mohs):
6 - 7

Crystallography of Tantalcarbide

Crystal System:
Isometric

Optical Data of Tantalcarbide

Type:
Isotropic

Chemical Properties of Tantalcarbide

Formula:
TaC
Essential elements:
All elements listed in formula:

Relationship of Tantalcarbide to other Species

1.BA.05Cohenite(Fe,Ni,Co)3C
1.BA.10Haxonite(Fe,Ni)23C6
1.BA.10Isovite(Cr,Fe)23C6
1.BA.15TongbaiteCr3C2
1.BA.20Khamrabaevite(Ti,V,Fe)C
1.BA.20Niobocarbide(Nb,Ta)C
1.BA.25QusongiteWC
1.BA.30YarlongiteCr4Fe4NiC4

Other Names for Tantalcarbide

Name in Other Languages:

Other Information

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 Tantalcarbide

Reference List:
Novgorodova M.I. et al. (1997), Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 126(1): 76.

American Mineralogist (1996): 81: 751-755. ???

Internet Links for Tantalcarbide

Localities for Tantalcarbide

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Nizhnii Tagil
          • Baranchinsky Massif
            • Aktai River
Novgorodova M.I., Generalov M.E., Trubkin N.V. (1997) A new TaC-NbC isomorphous series and Niobocrbide, a new mineral from platinum-bearing placers of the Urals, - ZVMO, 126(1), pp.76-95 (in Rus.); 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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