Almandine and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.30
2.30-2.50
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
none
Perfect on (001)
Mohs Hardness
7-7.5
4.5-5
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Almandine and Apophyllite Chemical Formula
While comparing Almandine 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 Almandine and Apophyllite chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Almandine and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.