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1 item @ $25.00  
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Dravite var. chromian

#66116
SOLD
Dravite from Amercan No. 1 Talc mine, Balmat, St. Lawrence Co., New York, United States - 66116
Dravite from Amercan No. 1 Talc mine, Balmat, St. Lawrence Co., New York, United States - 66116

Dravite var. chromian

#66116
Availability
Sold
Size
2.2 x 2 x 1.2 cm - Thumbnail 
Formula
NaMg3Al6(BO3)3Si6O18(OH)4 (RRUFF)
Locality
Amercan No. 1 Talc mine, Balmat, St. Lawrence Co., New York, United States

Green prismatic crystals in matrix colored green bu chromium.

Dravite

Formula
NaMg3Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Massive, Columnar, Divergent 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
black, green, red, blue, white 
Streak
colorless 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
7-7.5 

Data courtesy of Webmineral.

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