1) An important source of boron 2) Important ore of boron 3) Mineral 4) Monoclinic mineral 5) Sodium mineral
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https://www.crosswordclues.com/clue/kernite
Kernite, also known as rasorite is a hydrated sodium borate hydroxide mineral with formula {chem|Na|2|B|4|O|6|(OH)|2|·3(H|2|O)}. 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 ...
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http://en.wikipedia.org/wiki/Kernite
borate mineral, hydrated sodium borate (Na2B4O74H2O), that was formerly the chief source of borax (q.v.). It forms very large crystals, often 60 to ... [2 related articles]
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http://www.britannica.com/eb/a-z/k/23
Kernite is a major ore of boron. It is formed in playa lakes with the boron supplied by thermal springs passing through the underlying volcanic rock. It has the formulae Na2B4O7ù4H2O and a relative hardness of 3.
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http://www.probertencyclopaedia.com/browse/HK.HTM
[
n] - a light soft mineral consisting of hydrated sodium borate in crystalline form
Found on
http://www.webdictionary.co.uk/definition.php?query=kernite
(Hydrated Sodium Borate Hydroxide) Kernite, like other borates, is a structurally complex mineral. The basic structure of kernite contains chains of interlocking BO 3 (OH) tetrahedrons. The chains' basic unit has a formula of B 4 O 6 (OH) 2 and a charge of negative two (-2). Connected to the chains are triangular BO 3 groups w...
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https://www.encyclo.co.uk/local/23719
a mineral, hydrated sodium borate, NaBO&multiplydot;4HO, occurring in transparent colorless crystals: the principal source of boron compounds in the U.S.
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https://www.infoplease.com/dictionary/kernite
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