Formula: Al2(PO4)(OH)3.H2O
Origin of name: after locality Senegal
Crystal system: orthorhombic
Crystal class: mm2
Twinning:
Unit cell: a = 9.692 Å, b = 7.596 Å, c = 7.660 Å
Colour: colourless to pale yellow
Diaphaneity:
Luster: vitreous
Habit:
Hardness: 5.5
Specific gravity: 2.552
Cleavage: 1; {100} imperfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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