Fire Agate and Sillimanite Physical Properties
Tenacity
Not Available
Tough
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.64
3.20-3.26
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Splintery
Cleavage
Absent
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
SiO 2Arthur Thomas , Gemstones (2009)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Fire Agate and Sillimanite Chemical Formula
While comparing Fire Agate 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 Fire Agate and Sillimanite chemical formula.
- Chemical formula of Fire Agate- SiO 2Arthur Thomas , Gemstones (2009)
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Fire Agate and Sillimanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fire Agate and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Agate and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Fire Agate is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.