Agate and Staurolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.64
3.7-3.8
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Indiscernible
Distinct on {010}
Mohs Hardness
6.5-7
7-7.5
Chemical Composition
SiO2
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Agate and Staurolite Chemical Formula
While comparing Agate and Staurolite 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 Agate and Staurolite chemical formula.
- Chemical formula of Agate- SiO2
- Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Agate and Staurolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Agate and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Agate is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.