Yoderite

General Information:
 Chemical Formula:
(Mg,Al,Fe+++)8Si4(O,OH)20
 IMA Status:
Approved IMA 1959
Physical Properties:
 Cleavage:
[???] Good
 Color:
purple red.
 Density:
3.39
 Hardness:
6 - Orthoclase
 Streak:
white
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