Kemmlitzite

General Information:
 Chemical Formula:
(Sr,Ce)Al3(AsO4)(SO4)(OH)6
 IMA Status:
Approved IMA 1969
Physical Properties:
 Cleavage:
[???] Indistinct
 Color:
colorless, gray brown, or light brown.
 Density:
3.63
 Diaphaniety:
Transparent to Translucent
 Hardness:
5.5 - Knife Blade
 Luster:
Vitreous (Glassy)
 Streak:
white
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