page_title: Tantalcarbide
hierarchical_section_title: Tantalcarbide
caption_attribution_description: English: Unpolished microprobe preparate with a 0,20 x 0,15 x 0,10 mm grain of bronze-pinkish Tantalcarbide from the type and only known locality worldwide (Avrorinskii Placer, Aktai River, Baranchinsky Massif, Nizhnii Tagil, Sverdlovsk Oblast, Russian Federation), completely analyzed. The exact formula of this specimen is (Ta0,80Nb0,20)C. Part of holotype, portion of original material sold by Krantz to FMM in 1912 and collected at the beginning of XX century. This material was investigated and led to an article describing the new isomorphous series TaC-NbC from platinum placers of the Urals.
context_page_description: Tantalcarbide is a rare mineral of tantalum carbide with formula TaC. With a molecular weight of 192.96 g/mol, its primary constituents are tantalum and carbon, and has an isometric crystal system. It generally exhibits a bronze or brown to yellow color. On the Mohs hardness scale it registers as a 6-7. Tantalcarbide is generally found in a granular state. It is extremely dense at 14.6 g/. Sub-conchoidal fracturing is exhibited.
  Specimens are extremely rare in nature. It is the only known mineral to exhibit the composition of TaC.
  Tantalum carbide powder is used for many real world applications. Generally however it is not produced from the mineral tantalcarbide due to the rarity. Instead it is prepared by other means.
context_section_description: Tantalcarbide is a rare mineral of tantalum carbide with formula TaC.  With a molecular weight of 192.96 g/mol, its primary constituents are tantalum (93.78%) and carbon (6.22%), and has an isometric crystal system. It generally exhibits a bronze or brown to yellow color. On the Mohs hardness scale it registers as a 6-7. Tantalcarbide is generally found in a granular state. It is extremely dense at 14.6 g/. Sub-conchoidal fracturing is exhibited.
  Specimens are extremely rare in nature. It is the only known mineral to exhibit the composition of TaC. 
  Tantalum carbide powder is used for many real world applications. Generally however it is not produced from the mineral tantalcarbide due to the rarity. Instead it is prepared by other means.
caption: Unpolished microprobe preparate with a 0.20 x 0.15 x 0.10 mm grain of bronze-pinkish tantalcarbide from the type and only known locality worldwide (Avrorinskii Placer, Aktai River, Baranchinsky Massif, Nizhnii Tagil, Sverdlovsk Oblast, Russian Federation), completely analyzed.
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