Lapis lazuli and Bastnasite Physical Properties

Lapis lazuli

Bastnasite

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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

4.95-5.0

Uneven

Imperfect to indistinct on {10 1 0}, parting on {0001}

4-5

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lapis lazuli and Bastnasite Chemical Formula

While comparing Lapis lazuli and Bastnasite 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 Bastnasite chemical formula.

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Lapis lazuli and Bastnasite Specific Gravity

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