Formula: (Sr,Ca)Al2(CO3)2(OH)4.H2O
Origin of name: from strontium and dresserite
Crystal system: orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: silky white
Diaphaneity:
Luster: vitreous
Habit: crystals lath-like, to 0.1 mm, in rings to 3 mm across
Hardness:
Specific gravity: 2.71
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: Sr analogue of dresserite
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