Formula: Ca2B6O6(OH)10 . 2H2O
Origin of name: For W. Meyerhoffer, German chemist
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell: a = 6.62 Å, b = 8.32 Å, c = 6.49 Å, α = 90.6°, β = 101.9°, γ = 86.6°
Colour: Colourless to white
Diaphaneity: Transparent to translucent
Luster: Vitreous
Habit: Crystals prismatic; fibrous
Hardness: 2
Specific gravity: 2.120
Cleavage: 3; {010} perfect, {100} and {1-10} imperfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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