Natrolite

Hardness ( Moh )

" 5-6

Crystal System

Orthorhombic

Specific Gravity

2.25

Refractive Index

1.473 - 1.496

Birefringence

Family

Colour(s)

White, colorless, pink

Cleavage

Francture Type

Irregular, uneven

Luster

Streak

White

Transparency

Transparent to translucent

Formula

Na2Al2Si3O10·2H2O

Country

Found In Algeria,Angola,Antarctica,Argentina,Armenia,Australia,Austria,Azerbaijan,Bailiwick of Guernsey,Belgium,Bolivia,Bosnia and Herzegovina,Brazil,Bulgaria,Cambodia,Cameroon,Canada,Chile,China,Costa Rica,Cyprus,Czech Republic,Dominican Republic,Egypt,Ethiopia,Faroe Islands,Finland,France,Germany,Greece,Greenland,Guinea,Hungary,Iceland,India,Indian Ocean,Indonesia,Iran,Italy,Japan,Kazakhstan,Kenya,Lesotho,Libya,Madagascar,Malawi,Mexico,Morocco,Myanmar,Namibia,New Zealand,North America,Norway,Pacific Ocean,Pakistan,Panama,Paraguay,Peru,Poland,Portugal,Romania,Russia,Slovakia,Solomon Islands,South Africa,Spain,Sweden,Switzerland,Taiwan,Tanzania,Turkey,Uganda,UK,Ukraine,USA,Vietnam,Zimbabwe