Onyx

Onyx

Hardness ( Moh )

" 6.5 - 7

Crystal System

Trigonal

Specific Gravity

2.7

Refractive Index

1.535 - 1.539

Birefringence

Family

Quartz

Colour(s)

White, Black, Banded

Cleavage

Francture Type

Uneven, conchoidal

Luster

Streak

White

Transparency

Translucent

Formula

SiO2

Country

Found In Afghanistan,Argentina,Australia,Brazil,Canada,China,Czech Republic,France,Germany,India,Madagascar,Russia,UK,USA