Home
Gemstones


Obsidian and Cobaltite Physical Properties


Cobaltite and Obsidian Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.35-2.60   
6.3   

Fracture
Conchoidal, ConchoidalWalter Schumann, Conchoidal   
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic   

Cleavage
Not Available   
{100} Good, {010} Good, {001} Good   

Mohs Hardness
5-5.5   
5.5   

Chemical Composition
Not Available   
CoAsSAnthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
<< Astrology

Obsidian and Cobaltite Chemical Formula

While comparing Obsidian and Cobaltite 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 Obsidian and Cobaltite chemical formula.

Compare Gems for Sagittarius

Obsidian and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 6.3 whereas that of Cobaltite is 6.3.

Gems for Sagittarius

Gems for Sagittarius


Compare Gems for Sagittarius