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Lapis lazuli
Lapis lazuli

Hematite
Hematite



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Lapis lazuli
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Hematite

Lapis lazuli and Hematite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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
 
Brittle
-
-
5.00-5.30
Uneven, ConchoidalWalter Schumann, Conchoidal
None, may show partings on {0001} and {10 1 1}
6
Fe 2O 3Arthur Thomas , Gemstones (2009)

Lapis lazuli and Hematite Chemical Formula

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

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Lapis lazuli and Hematite Specific Gravity

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