Zoisite information's

 

Zoisite

Zoisite is a mineral belonging to the sorosilicate family. It has the chemical formula Ca2Al3(SiO4)3(OH), and it is often found in a variety of colors and forms. Here is some more information about zoisite:

Varieties

Zoisite comes in a variety of colors and forms. Some of the most well-known varieties include:

• Tanzanite - blue to violet-blue zoisite, first discovered in Tanzania in 1967
• Thulite - pink to reddish-pink zoisite, first discovered in Norway in 1820
• Anyolite - green zoisite with ruby inclusions, first discovered in Tanzania in the 1950s

Discovery

Zoisite was first discovered in Austria in 1805 by the mineralogist Sigmund Zois. Since then, zoisite has been found in many locations around the world.

Physical Properties

• Hardness: 6.5 - 7
• Density: 3.15 - 3.36 g/cm3
• Color: Typically brown, green, or pink, but can also be blue, violet-blue, or colorless
• Luster: Vitreous to subadamantine
• Streak: White

Optical Properties

• Refractive index: 1.69 - 1.70
• Birefringence: 0.008 - 0.012
• Pleochroism: Weak to moderate

Ranking of Rarity

Zoisite is not considered a particularly rare mineral, but some of its varieties, like tanzanite, can be quite valuable.

Occurrence (countries)

Zoisite can be found in many locations around the world, including:

• Austria
• Canada
• India
• Madagascar
• Norway
• Tanzania
• United States

Healing Properties

Zoisite is said to have a number of healing properties, including:

• Helping to soothe the mind and emotions
• Stimulating creativity and self-expression
• Assisting with detoxification and purification of the body
• Boosting the immune system

Uses

Zoisite and its varieties have a number of uses, including:

• Tanzanite is often used in jewelry
• Thulite is sometimes used as a decorative stone
• Anyolite is used in carvings and other decorative objects
• Zoisite in general is sometimes used as a gemstone or for ornamental purposes