Ettringite and Axinite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Partially soluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.77
3.26-3.36
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {10 1 0}
Good on {100}
Mohs Hardness
2-2.5
6.5-7
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Ettringite and Axinite Chemical Formula
While comparing Ettringite and Axinite 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 Ettringite and Axinite chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Ettringite and Axinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.