Glaucophane and Staurolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3-3.15
3.7-3.8
Fracture
Conchoidal, Brittle, Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Good on [110] and on [001]
Distinct on {010}
Mohs Hardness
6.0-6.5
7-7.5
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Glaucophane and Staurolite Chemical Formula
While comparing Glaucophane 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 Glaucophane and Staurolite chemical formula.
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
- Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Glaucophane and Staurolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Glaucophane and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.