Lazulite and Jade Physical Properties

Lazulite

Jade

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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

3.04-3.172.90-3.38

1 7.18

1.5 Fracture

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

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

{001} Indistinct, {???} Indistinct

1 or 2,2 prismatic.

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

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

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Lazulite and Jade Chemical Formula

While comparing Lazulite and Jade 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 Jade 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 Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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Lazulite and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Jade Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.90-3.38 whereas that of Jade is 2.90-3.38.