Hibonite and Almandine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.84
3.95-4.30
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{0001} good, {10 1 0} parting
none
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Hibonite and Almandine Chemical Formula
While comparing Hibonite and Almandine 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 Almandine chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Hibonite and Almandine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.