tincalconite

tincalconite

also called  jewelers' borax 

      a borate mineral, hydrated sodium tetraborate (Na2B4O5(OH)4·3H2O), that is found in nature only as a dull, white, fine-grained powder; colourless crystals of the mineral have been made artificially. Tincalconite is common in the borax deposits of southern California, where it often occurs as a coating on kernite or borax, both of which alter to it in a dry atmosphere. For detailed physical properties, see borate mineral (table).

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Universalium. 2010.

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  • tincalconite — tin·cal·co·nite …   English syllables

  • tincalconite — tinˈkalkəˌnīt, tiŋˈk noun ( s) Etymology: tincal + Greek konia ashes, dust + English ite more at incinerate : a mineral Na2B4O7.5H2O consisting of sodium borate pentahydrate that is one of the principal ore minerals of borax and boron compounds… …   Useful english dictionary

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  • Kernite — Catégorie VI : borates[1] Kernite Général …   Wikipédia en Français

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