Barite and Lapis lazuli Physical Properties

Barite

Lapis lazuli

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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

4.482.50-3.00

1 7.18

1.5 Fracture

Uneven

Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{010} Perfect, {210} Perfect, {010} Imperfect

3,6

1.7 Mohs Hardness

3-3.55.5

2 10

1.8 Chemical Composition

BaSO4

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

Barite and Lapis lazuli Chemical Formula

While comparing Barite 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 Barite and Lapis lazuli chemical formula.

Chemical formula of Barite- BaSO4
Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

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Barite and Lapis lazuli Specific Gravity

Another important criteria for qualitative analysis of gemstones is Barite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Barite and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Barite is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.