Micas are one of the most abundant minerals found in igneous and metamorphic rocks. We call it mica lepidolite when it is a lilac to pink phylocysilicylate and its crystals form thin, flexible sheets. It is a mineral with a high lithium content. It belongs to the group of silicates-phylophyloysyphysylates and its hardness is 2'5-3'5 on the Mohs scale
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