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Malachite
Malachite

Lapis lazuli
Lapis lazuli



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Malachite
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Lapis lazuli

Malachite and Lapis lazuli Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.25-4.10
Conchoidal, Uneven
Perfect on { 2 01} fair on {010}
3.5-4
Cu2CO3(OH)2
 
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-
-
2.50-3.00
Uneven-Conchoidal, ConchoidalWalter Schumann
3,6
5.5
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4

Malachite and Lapis lazuli Chemical Formula

While comparing Malachite and Lapis lazuli 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 Malachite and Lapis lazuli chemical formula.

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Malachite and Lapis lazuli Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite Vs Lapis lazuli during the identification of gemstone. Specific gravity of Malachite is whereas that of Lapis lazuli is .