Dallasite and Lazulite Physical Properties

Dallasite

Lazulite

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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

2.58-2.913.04-3.17

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

6.5-75.5

2 10

1.8 Chemical Composition

Not Available

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

Dallasite and Lazulite Chemical Formula

While comparing Dallasite 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 Dallasite and Lazulite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Dallasite and Lazulite Specific Gravity

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