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Pargasite

#PD44862

Pargasite

#PD44862
Availability
Sold
Size
8.5 x 6 x 3 cm - Sm Cabinet 
Formula
NaCa2(Mg4Al)(Si6Al2)O22(OH)2 (RRUFF)
Locality
Luc Yen, Yenbai prov., Vietnam

This occurence of Pargasite was once thought to be fluor-cannilloite, much rare mineral. But in this case all you get is this bright apple green crystals of Pargasite. Pargasite is normally a dull, ugly greyish green. The largest crystals is 1.2cm. Marble matrix.

Pargasite

Formula
NaCa2(Mg4Al)(Si6Al2)O22(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Tabular 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous (Glassy) 
Color
bluish green, brown, grayish black, light brown, dark green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection
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