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0 item @ $0.00  

Gismondine

#PD48091

Gismondine

#PD48091
Availability
Sold
Size
6 x 6 x 5.5 cm - Sm Cabinet 
Formula
Ca2(Si4Al4)O16·8H2O (RRUFF)
Locality
Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy

Chalky white Gismondine, a zeolite, in fine grained volcanic bomb.

Gismondine

Formula
Ca2(Si4Al4)O16·8H2
Crystal System
Monoclinic 
Crystal Habit
Pseudo Tetragonal, Globular 
Cleavage
Imperfect, None, None 
Luster
Vitreous (Glassy) 
Color
blue white, colorless, gray, white, red 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
4-5 

Data courtesy of Webmineral.

Collection
Don Phillips Collection

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