Apophyllite and Taaffeite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.50
3.60-3.61
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Conchoidal
Cleavage
Perfect on (001)
Imperfect/fair/absent
Mohs Hardness
4.5-5
8-8.5
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Apophyllite and Taaffeite Chemical Formula
While comparing Apophyllite and Taaffeite 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 Apophyllite and Taaffeite chemical formula.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Apophyllite and Taaffeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.