Zinnwaldite and Lazulite Physical Properties

Zinnwaldite

Lazulite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.13.04-3.17

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

3.5-4.05.5

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Lazulite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite 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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Zinnwaldite and Lazulite Specific Gravity

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