Lazulite and Hardystonite Physical Properties

Lazulite

Hardystonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.173.396-3.443

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

Brittle, Metallic

1.6 Cleavage

{001} Indistinct, {???} Indistinct

[001] good, [100] and [110] fair

1.7 Mohs Hardness

5.53-4

2 10

1.8 Chemical Composition

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

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Lazulite and Hardystonite Chemical Formula

While comparing Lazulite and Hardystonite 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 Lazulite and Hardystonite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Lazulite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.