Quartz

Hardness ( Moh )

" 7

Crystal System

Trigonal, β-quartz: hexagonal

Specific Gravity

2.65

Refractive Index

1.544 - 1.553

Birefringence

Family

Quartz

Colour(s)

Colourless

Cleavage

Francture Type

Conchoidal

Luster

Streak

White

Transparency

Transparent to opaque

Formula

SiO2

Country

Found In Afghanistan,Argentina,Australia,Austria,Belgium,Bolivia,Bosnia and Herzegovina,Brazil,Canada,China,Colombia,Ecuador,France,Hungary,Ireland,Italy,Kazakhstan,Mexico,Namibia,Norway,Peru,Poland,Portugal,Russia,Slovakia,Slovenia,South Africa,Spain,Switzerland,Turkey,USA,Vietnam