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Lepidolite

#57610
SOLD
Lepidolite from Itinga, Minas Gerais, Brazil - 57610
Lepidolite from Itinga, Minas Gerais, Brazil - 57610

Lepidolite

#57610
Availability
Sold
Size
12.5 x 12.5 x 0.5 cm - Cabinet 
Formula
K(Li,Al)3(Si,Al)4O10(F,OH)2 (RRUFF)
Locality
Itinga, Minas Gerais, Brazil

A large plate of purple Lepidolite to 12.5cm and 5mm thick. The first photo is backlit and shows the outline of the pseudohexagonal crystal form. In the last two photos the growth lines of the crystal can be seen.

Lepidolite falls within the series between Polylithionite and Trilithionite.

Lepidolite

Formula
K(Li,Al)3(Si,Al)4O10(F,OH)2 
Crystal System
Monoclinic 
Crystal Habit
Platy, Foliated, Massive 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
colorless, gray white, lilac, yellowish, white 
Streak
white 
Class
Monoclinic 
Fracture
Uneven 
Hardness
2.5-3 

Data courtesy of Webmineral.

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