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Tantalcarbide

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Formula:
TaC
System:IsometricColour:Bronze
Lustre:MetallicHardness: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

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:1/A.09-60
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:1.1.29.2

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

Type Locality:Avrorinskii Placer, Aktai River, Baranchinsky Massif, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia

Physical Properties of Tantalcarbide

Lustre: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:C, Ta
All elements listed in formula:C, Ta

Relationship of Tantalcarbide to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
1.BA.05Cohenite
(Fe,Ni,Co)
 
3
C
1.BA.10Haxonite
(Fe,Ni)
 
23
C
 
6
1.BA.10Isovite
(Cr,Fe)
 
23
C
 
6
1.BA.15Tongbaite
Cr
 
3
C
 
2
1.BA.20Khamrabaevite
(Ti,V,Fe)C
1.BA.20Niobocarbide
(Nb,Ta)C
1.BA.25Qusongite
WC
1.BA.30Yarlongite
Cr
 
4
Fe
 
4
NiC
 
4

Other Names for Tantalcarbide

Other Languages:
German:Tantalcarbid
Russian:Танталкарбид

Other Information

Health Warning: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

Search Engines:
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  • External Links:
  • Look for Tantalcarbide on Webmineral
  • Look for Tantalcarbide on Athena Mineralogy
  • Look for Tantalcarbide on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Tantalcarbide details from Handbook of Mineralogy (PDF)
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  • Localities for Tantalcarbide

    (TL) indicates type locality. ? 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
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