Chlorastrolite and Franklinite Physical Properties

Chlorastrolite

Franklinite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.1-3.5

Granular

None

5-6

Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

5.05-5.22

Uneven

None

5.5-6

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

Chlorastrolite and Franklinite Chemical Formula

While comparing Chlorastrolite and Franklinite 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 Chlorastrolite and Franklinite chemical formula.

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Chlorastrolite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite Vs Franklinite during the identification of gemstone. Specific gravity of Chlorastrolite is whereas that of Franklinite is .