Formula: Ca(Zn,Cu)(Fe,Zn)(AsO3,OH)2(OH)3
Origin of name: From ferric iron (Fe3+) and lotharmeyerite
Crystal system: Monoclinic
Crystal class: 2 or m or 2/m
Twinning:
Unit cell:
Colour: Brownish yellow
Diaphaneity: Transparent to translucent
Luster: Adamantine to greasy
Habit: Subhedral crystallites average 0.2 mm in aggregates to 3mm; or tabular to wedge shaped
Hardness: 3
Specific gravity: 4.25
Cleavage: 1; {001} good
Tenacity:
Streak: Pale yellow
Synonyms/varieties:
Comments: Ferric iron (Fe3+) analogue of lotharmeyerite
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