Sarcolite

General Information:
 Chemical Formula:
Na,Ca6Al4Si6O24F (?)
 Locality:
Mte. Somma, Vesuvious, Italy.
Physical Properties:
 Color:
pink, red, or reddish white.
 Density:
2.545 - 2.932, Average = 2.73
 Diaphaniety:
Translucent
 Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., ,
 Hardness:
6 - Orthoclase
 Luster:
Vitreous (Glassy)
 Streak:
white
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