Hibonite and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.84
2.30-2.50
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
{0001} good, {10 1 0} parting
Perfect on (001)
Mohs Hardness
7.5-8
4.5-5
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Hibonite and Apophyllite Chemical Formula
While comparing Hibonite 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 Hibonite and Apophyllite chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Hibonite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.