Formula: NaBSi3O8
Origin of name: for F. Reed and J. Mergner, American technologists
Crystal system: triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: colourless
Diaphaneity: transparent
Luster: vitreous
Habit: crystals stubby prismatic, wedge-shaped termination, to 2 mm
Hardness: 6 to 6.5
Specific gravity: 2.78
Cleavage: 1; {100} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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