Franklinite and Star Sapphire Physical Properties

Franklinite

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.05-5.223.90-4.05

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

Not Available

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Al 2O 3Ulrich Henn and Claudio C.

Franklinite and Star Sapphire Chemical Formula

While comparing Franklinite and Star Sapphire 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 Franklinite and Star Sapphire chemical formula.

Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Red Gemstones

Franklinite Vs Hydrogrossular

Franklinite Vs Hibonite

Franklinite Vs Hexagonite

Franklinite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.