Formula: NaFe3(PO4)2(OH)4 . 2H2O
Origin of name: After localtiy; Cyrilov, Moravia, Czech Republic
Crystal system: Tetragonal
Crystal class: 422
Twinning:
Unit cell:
Colour: Orange to brownish yellow
Diaphaneity:
Luster: Vitreous
Habit: Crystals squat, microscopic; intergrown aggregates
Hardness:
Specific gravity: 3.08
Cleavage: None
Tenacity:
Streak: Yellow
Synonyms/varieties:
Comments:
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