Formula: Al4(SO4)(OH)10 . 5H2O
Origin of name: From locality; Felsöbanya, Romania
Crystal system: Orthorhombic
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Colourless, white, yellow
Diaphaneity:
Luster: Vitreous, pearly on cleavage
Habit: Crystals thin tabular forming spherulitic aggregates
Hardness: 1.5
Specific gravity: 2.35
Cleavage: 3;; {001} perfect, {100} and {010} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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