Formula: FePO4
Origin of name: Named after Francesco Rodolico (1905–1988), professor of mineralogy, University of Florence, Italy, specialist of the history of geology and of building and ornamental materials, au thor of Le pietre delle città d’Italia.
Crystal system: Trigonal
Crystal class: 3 2
Twinning:
Unit cell: a = 5.048, c = 11.215
Colour: Brown, red brown
Diaphaneity: Opaque
Luster: Greasy
Habit: Nodular, aggregates
Hardness:
Specific gravity: 3.07
Cleavage: None
Tenacity: Brittle
Streak: Brown
Synonyms/varieties:
Comments:
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