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Lepidolite

#PD34928

Lepidolite

#PD34928
Availability
Sold
Size
6 x 6.5 x 5 cm - Sm Cabinet 
Formula
K(Li,Al)3(Si,Al)4O10(F,OH)2 (RRUFF)
Locality
Newry Mica mine, Oxford Co., Maine, United States
Tagged
pegmatite

Light lilac Lepidolite mass, a lithium rich mica typically found in LCT (Lithium-Cesium-Tantalum) pegmatites. LCT pegmatites are peraluminous, and besides the LCT composition may also be enriched in Be, B, F, P, and Mn. The peraluminous nature is expressed by the presence of Muscovite. This specimen also contains nice platy Albite variety cleavelandite.

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.

Collection
Phillips Collection

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