Hibonite and Astrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.84
3.2-3.4
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Brittle, Metallic
Cleavage
{0001} good, {10 1 0} parting
Perfect on [001] imperfect on [100]
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Hibonite and Astrophyllite Chemical Formula
While comparing Hibonite and Astrophyllite 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 Astrophyllite chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Hibonite and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.