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1 item @ $25.00  
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Selenium

#65543
SOLD
Selenium from Katerina Coal Mine, Radvanice, Bohemia, Czech Republic - 65543
Selenium from Katerina Coal Mine, Radvanice, Bohemia, Czech Republic - 65543

Selenium

#65543
Availability
Sold
Size
5 x 2.5 x 3 cm - Miniature 
Formula
Se (RRUFF)
Locality
Katerina Coal Mine, Radvanice, Bohemia, Czech Republic
Tagged
native element

Silvery well-defined prismatic crystals to 0.75mm.  Excellent piece for this rarity.

Poisonous!!

Selenium

Formula
Se 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Granular, Disseminated 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
gray, purple gray, reddish 
Streak
red 
Class
Trigonal - Trapezohedral 
Fracture
Flexible 
Hardness
2 

Data courtesy of Webmineral.

Special Info
Poisonous!!
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