Chemical Formula

Na₂B₄O₆(OH)₂·3H₂O

Hardness (Mohs)

2.5-3

Crystal System

Monoclinic

Streak

white

Luster

Vitreous - Pearly

Diaphaneity

Transparent to translucent

Color

Colorless, White.

Crystal Habit / Mode of Occurrence

Acicular - Occurs as needle-like crystals.

Density

1.9 - 1.92, Average = 1.91