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0 item @ $0.00  

Marialite

#PD48053

Marialite

#PD48053
Availability
Sold
Size
10 x 7 x 2.5 cm - Cabinet 
Formula
(Na,Ca)4(Si,Al)12O24(Cl,CO3,SO4) (RRUFF)
Locality
Monte Somma, Vesuvius, Campania, Italy

Several long, prismatic black crystals of Marialite (a scapolite) to over 1cm on layered black (carbonaceous?) matrix. It is a unique looking matrix for this locality/

Marialite

Formula
(Na,Ca)4(Si,Al)12O24(Cl,CO3,SO4
Crystal System
Tetragonal 
Cleavage
Distinct, Distinct, None 
Luster
Vitreous - Pearly 
Color
bluish, brownish, colorless, violet, greenish 
Streak
white 
Class
Tetragonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
5.5-6 

Data courtesy of Webmineral.

Collection
Don Phillips Collection
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