Jacobsite and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.76-5.03
3.95-4.10
Fracture
Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
None
Not Available
Mohs Hardness
5.5-6.5
Not Available
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Jacobsite and Star Ruby Chemical Formula
While comparing Jacobsite and Star Ruby 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 Jacobsite and Star Ruby chemical formula.
- Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Jacobsite and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jacobsite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.