Eosphorite and Franklinite Physical Properties

Eosphorite

Franklinite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.05-3.085.05-5.22

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal

Uneven

Cleavage

Poor on {100}

None

Mohs Hardness

55.5-6

2 10

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Chemical Composition

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Eosphorite and Franklinite Chemical Formula

While comparing Eosphorite 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 Eosphorite and Franklinite chemical formula.

Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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Eosphorite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eosphorite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eosphorite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Eosphorite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.