Pyrope and Hibonite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.62-3.87
3.84
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
None
{0001} good, {10 1 0} parting
Mohs Hardness
7-7.5
7.5-8
Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Ca,Ce)(Al,Ti,Mg)12O19
Pyrope and Hibonite Chemical Formula
While comparing Pyrope and Hibonite 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 Pyrope and Hibonite chemical formula.
- Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Pyrope and Hibonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrope and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.84 whereas that of Hibonite is 3.84.