Eosphorite and Lazulite Physical Properties

Eosphorite

Lazulite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.05-3.083.04-3.17

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal

Uneven

Cleavage

Poor on {100}

{001} Indistinct, {???} Indistinct

Mohs Hardness

55.5

2 10

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Chemical Composition

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

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Eosphorite and Lazulite Chemical Formula

While comparing Eosphorite and Lazulite 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 Lazulite chemical formula.

Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Eosphorite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eosphorite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eosphorite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Eosphorite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.