Amethyst

Hardness ( Moh )

" 7

Crystal System

Trigonal

Specific Gravity

2.63 - 2.65

Refractive Index

1.544 - 1.533

Birefringence

Family

Quartz

Colour(s)

Purple, violet

Cleavage

Francture Type

Conchoidal

Luster

Streak

White

Transparency

Transparent to opaque

Formula

SiO2

Country

Found In Afghanistan,Angola,Argentina,Australia,Brazil,Burundi,Canada,China,Czech Republic,DR Congo,Egypt,Ethiopia,Finland,France,Germany,India,Italy,Japan,Kazakhstan,Madagascar,Mozambique,Myanmar,Namibia,Nigeria,North Korea,Norway,Portugal,Russia,Rwanda,South Africa,South Korea,Spain,Sweden,Uganda,UK,Ukraine,USA,Zimbabwe