Home
Gemstones


Sillimanite and Elbaite Physical Properties


Elbaite and Sillimanite Physical Properties


Physical Properties

Tenacity
Tough   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.20-3.26   
2.90-3.10   

Fracture
Splintery   
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   

Cleavage
{010} perfect   
Poor/indistinct on {1120} and {1011}   

Mohs Hardness
6-7.5   
7   

Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references   

Optical Properties >>
<< Astrology

Sillimanite and Elbaite Chemical Formula

While comparing Sillimanite and Elbaite 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 Sillimanite and Elbaite chemical formula.

Compare Blue Gemstones

Sillimanite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones