Gahnospinel and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.65-4.55
2.30-2.50
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit slight parting
Perfect on (001)
Mohs Hardness
7.5-8
4.5-5
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Gahnospinel and Apophyllite Chemical Formula
While comparing Gahnospinel and Apophyllite 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 Gahnospinel and Apophyllite chemical formula.
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Gahnospinel and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnospinel and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.