Formula: Ba2TiSi2O8
Origin of name: Locality; Fresno Co., California
Crystal system: Tetragonal
Crystal class: 4mm
Twinning:
Unit cell:
Colour: Lemon-yellow, canary-yellow
Diaphaneity:
Luster: Vitreous
Habit: Crystals elongated slightly, subhedral to euhedral, tiny, in aggregates
Hardness: 3 to 4
Specific gravity: 4.43
Cleavage: 1; {001} fair
Tenacity:
Streak: White
Synonyms/varieties:
Comments: Fluoresces yellow under SW
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