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0 item @ $0.00  

Lepidolite epimorph after Elbaite

#28376

Lepidolite epimorph after Elbaite

#28376
Availability
Sold
Size
7 x 5 x 4.5 cm - Sm Cabinet 
Formula
Unavailable
Locality
Barra do Salinas, Coronel Murta, Minas Gerais, Brazil

This is a really neat and interesting piece with two hollow epimorph tubes of crystalline purple micaceous Lepidolite. Apparently there were Elbaite (or another slender prismatic mineral) that were partially covered by the Lepidolite and when the Elbaite dissolved out (or however it dissapeared) the Lepidolite remained with empty holes.

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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