Kernite

Kernite

Kernite, also known as rasorite is a hydrated sodium borate hydroxide mineral with formula Na2B4O6(OH)2·3H2O. It is a colorless to white mineral crystallizing in the monoclinic crystal system typically occurring as prismatic to acicular crystals or granular masses. It is relatively soft with Mohs hardness of 2.5 to 3 and light with a specific gravity of 1.91. It exhibits perfect cleavage and a brittle fracture. Kernite is used to produce borax which can be used in a variety of soaps.

The mineral was discovered in 1926 in Kern County, California and later named for the county. Kern County was the only known source of kernite for many years but is now mined in Argentina, Spain, and Turkey. It occurs in sedimentary evaporite deposits in arid regions.

References

* [http://www.mindat.org/min-2188.html Mindat with location data]
* [http://webmineral.com/data/Kernite.shtml Webmineral data]


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Look at other dictionaries:

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

  • kernite — ☆ kernite [kʉr′nīt΄ ] n. [after Kern County, California, where mined + ITE1] a colorless, soft, monoclinic mineral, hydrous sodium borate, Na2B4O7·4H2O, that is an important ore of boron …   English World dictionary

  • kernite — /kerr nuyt/, n. a mineral, hydrated sodium borate, Na2B4O7·4H2O, occurring in transparent colorless crystals: the principal source of boron compounds in the U.S. [1925 30; named after Kern County, California; see ITE1] * * * ▪ mineral also called …   Universalium

  • kernite — noun Etymology: Kern Co., Calif. Date: 1927 a colorless to white mineral that consists of a hydrous borate of sodium …   New Collegiate Dictionary

  • kernite — noun A hydrated borate mineral, NaBO(OH), originally discovered in the Mojave Desert …   Wiktionary

  • kernite — ker·nì·te s.f. TS mineral. minerale, di colore bianco, costituito da borato di sodio idrato, che cristallizza nel sistema monoclino, da cui si ricava il boro {{line}} {{/line}} DATA: 1957. ETIMO: der. di Kern, nome di una contea della California …   Dizionario italiano

  • kernite — kern·ite …   English syllables

  • kernite — kern•ite [[t]ˈkɜr naɪt[/t]] n. mir a mineral, hydrated sodium borate, Na2B4O7∙4H2O, occurring in colorless crystals: the principal source of boron • Etymology: 1925–30; after Kern County, Calif.; see ite I …   From formal English to slang

  • kernite — /ˈkɜnaɪt/ (say kernuyt) noun a mineral, hydrated sodium borate, (Na2B4O7.4H2O), occurring in transparent colourless crystals. {named after Kern County, in California, US + ite1} …  

  • kernite — noun a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron • Hypernyms: ↑mineral • Substance Meronyms: ↑boron, ↑B, ↑atomic number 5 …   Useful english dictionary

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