Turquoise

Hardness ( Moh )

" 5 - 6

Crystal System

Triclinic

Specific Gravity

2.8

Refractive Index

1.610 - 1.650

Birefringence

Family

Colour(s)

Turquoise, blue, blue-green, green

Cleavage

Francture Type

Conchoidal

Luster

Streak

Bluish white

Transparency

Subtranslucent to opaque

Formula

CuAl6(PO4)4(OH)8·4H2O

Country

Found In Afghanistan,Argentina,Armenia,Australia,Austria,Azerbaijan,Belgium,Bolivia,Brazil,Bulgaria,Chile,China,Czech Republic,DR Congo,Egypt,Ethiopia,Europe,France,Germany,Greece,Hungary,India,Iran,Ireland,Israel,Italy,Japan,Kazakhstan,Kenya,Liberia,Madagascar,Mali,Mexico,Mongolia,Morocco,Namibia,Norway,Papua New Guinea,Peru,Poland,Portugal,Russia,Rwanda,Senegal,South Africa,Soviet Union (1922-1991),Spain,Sudan,Tajikistan,Tanzania,UK,USA,Uzbekistan