PEHRMANITE

General Information:

Chemical Formula:

(Fe++,Zn,Mg)2Al6BeO12

IMA Status:

Approved IMA 1981

Physical Properties:

Cleavage:

[???] Indistinct

Color:

light green.

Density:

4.07

Hardness:

8-8.5

Luster:

Vitreous (Glassy)

Streak:

white

More details...