Home
Gemstones


Zoisite and Sillimanite Physical Properties


Sillimanite and Zoisite Physical Properties


Physical Properties

Tenacity
Not Available   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.20-3.50   
3.20-3.26   

Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even   
Splintery   

Cleavage
Perfect {010} imperfect {100}   
{010} perfect   

Mohs Hardness
6-7   
6-7.5   

Chemical Composition
Ca2Al3(SiO4)3(OH)   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
<< Astrology

Zoisite and Sillimanite Chemical Formula

While comparing Zoisite and Sillimanite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Zoisite and Sillimanite chemical formula.

Compare Brown Gemstones

Zoisite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.

Brown Gemstones

Brown Gemstones


Compare Brown Gemstones