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Schorl with Albite

#23266
SOLD
Schorl from Anzar Army Camp, Gilgit-Skardu Rd., Northern Areas, Pakistan - 23266
Schorl from Anzar Army Camp, Gilgit-Skardu Rd., Northern Areas, Pakistan - 23266

Schorl with Albite

#23266
Availability
Sold
Size
5.5 x 2.5 x 3 cm - Sm Cabinet 
Formula
NaFe2+3Al6(BO3)3Si6O18(OH)4 (RRUFF)
Locality
Anzar Army Camp, Gilgit-Skardu Rd., Northern Areas, Pakistan

This specimen is much better in hand the photos hardly do it justice. The black terminated crystal of Schorl tourmaline is excellent and shows good striations while the snow white Albite crystals contrast well with the black tourmaline.

Schorl

Formula
NaFe2+3Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Acicular, Prismatic, Striated 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
black, brownish black, greenish black, bluish black 
Streak
brown 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5 

Data courtesy of Webmineral.

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