Mineral - Genthelvite
Genthelvite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Be₃Zn₄(SiO₄)₃S
Unit Cell
Physical Properties
Hardness
6 - 6.5
Streak
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
Birefringence
Luster
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
Formation
Paragenesis
Twinning
Rarity
Synonyms
Genthelvite