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Lepidolite (Silicate-Phyllosilicate) 


Hardness: 2.5 - 4.0
Specific Gravity: 2.9

Characteristics: Lithium mica; lilac to rose-red, less commonly, yellow, gray, or white; vitreous to pearly luster; perfect basal cleavage; translucent; produces red flame from presence of Li; insoluble in most acids.

Found in lithium-rich pegmatites.

(Primary text: Perkins, D. 2002. Mineralogy. Prentice Hall.)


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