Silicates
Bastite thin section
Name for pseudomorphs of serpentine group minerals after enstatite.
Formula: (Mg, Fe, Ni, Mn, Al, Zn)3Si2O5(OH)4
System: Monoclinic
Color: Green, green-blue, white, brown, black
Lustre: Vitreous
Hardness: 3–4
Density: 2.5–2.6
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