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Cervantite with Valentinite on Stibnite

#PD31196
SOLD
Cervantite from Xikuangshan Sb deposit, Lengshuijiang Co., Loudi, Hunan, China - PD31196
Cervantite from Xikuangshan Sb deposit, Lengshuijiang Co., Loudi, Hunan, China - PD31196

Cervantite with Valentinite on Stibnite

#PD31196
Availability
Sold
Size
9 x 2.5 x 2 cm - Sm Cabinet 
Formula
Sb3+Sb5+O4 (RRUFF)
Locality
Xikuangshan Sb deposit, Lengshuijiang Co., Loudi, Hunan, China

There are several alteration products of Stibnite. This specimen has two of them Valentinite and Cervantite. Both are kind of crusty light yellow and earthy to crystalline. I don't think there is much Stibnite remaining in the speicmen. It was alomost completely replaced.

Cervantite

Formula
Sb3+Sb5+O4 
Crystal System
Orthorhombic 
Crystal Habit
Reniform, Earthy, Acicular 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
yellow, yellowish orange, white, cream 
Streak
light yellow 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal 
Hardness
4-5 

Data courtesy of Webmineral.

Collection
Phillips Collection
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