Albite

Albite

Albite is a plagioclase feldspar, feldspars that form as a solid-solution series from albite to anorthite. Albite is the sodium-rich end member of this series. Plagioclase feldspars are found all over the world as they are very common rock forming minerals. The name albite comes form the Latin word for white, albus.

Chemical Formula:

NaAlSi3O8

Mineral Class:

Tectosilicate

Crystal System:

Triclinic

Symmetry:

-1

Hardness:

6

Specific Gravity:

2.62

Cleavage:

{001} perfect, {010} good

Fracture:

Conchoidal

Color:

Colorless, white, gray

Streak:

White

Luster:

Vitreous, pearly

Transparency:

Translucent/opaque

Common Habits:

Blocky, equant

Other Properties:

Notable Localities:

Brazil; Switzerland and Labrador, Canada

Uses:

Ceramics, sometimes as a gem

Associated Minerals:

Amazonite, beryl, danburite, garnet, microcline, nepheline

Specimens:


Albite
Minas Gerais, Brazil


Albite
Organ Mountains, NM


Albite
Minas Gerais, Brazil


Albite
Switzerland


Albite coated with chlorite
Massachusetts