Home
Gemstones


Hodgkinsonite and Astrophyllite Physical Properties


Astrophyllite and Hodgkinsonite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.06-4.08   
3.2-3.4   

Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   
Uneven, Brittle, Metallic   

Cleavage
{???} Perfect   
Perfect on [001] imperfect on [100]   

Mohs Hardness
4.5-5   
3   

Chemical Composition
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
<< Astrology

Hodgkinsonite and Astrophyllite Chemical Formula

While comparing Hodgkinsonite 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 Hodgkinsonite and Astrophyllite chemical formula.

Compare Violet Gemstones

Hodgkinsonite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hodgkinsonite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hodgkinsonite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Hodgkinsonite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.

Violet Gemstones

Violet Gemstones


Compare Violet Gemstones