Formula: Na2B5O8(OH) . H2O
Origin of name: For Vannocio Biringuccio, Italian metallurgist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour:
Diaphaneity:
Luster:
Habit: As tiny laminae or needles
Hardness:
Specific gravity: 2.32
Cleavage: 2; {001} and {100} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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