Tugtupite

Tugtupite

Hardness ( Moh )

" 4

Crystal System

Tetragonal

Specific Gravity

2.37 - 2.57

Refractive Index

1.494 - 1.504

Birefringence

Family

Colour(s)

White, pink, crimson, blue, green

Cleavage

Francture Type

Uneven

Luster

Streak

White

Transparency

Transparent to Translucent

Formula

Na4AlBeSi4O12Cl

Country

Found In Canada,Greenland,Russia