Formula: Ca2(Zn,Mg,Fe2+)5Be4[(OH)4|(PO4)6] · 6H2O
Origin of name:
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 15.98, b = 11.84, c = 6.63, β = 95.15°
Colour:
Diaphaneity:
Luster:
Habit:
Hardness:
Specific gravity:
Cleavage:
Tenacity:
Streak:
Synonyms/varieties:
Comments: Member of the roscherite group
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