Axinite occurs in cavities in granite and in the contact zones surrounding granite intrusions. It has the formulae Ca2(Fe,Mn) Al2(BO3)(Si4O12)(OH) and a relative hardness of 7.
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Axinite occurs in cavities in granite and in the contact zones surrounding granite intrusions. It has the formulae Ca2(Fe,Mn) Al2(BO3)(Si4O12)(OH) and a relative hardness of 7.
Related terms: