Baryte and Lapis lazuli Physical Properties

Baryte

Lapis lazuli

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.3-52.50-3.00

1 7.18

1.5 Fracture

Irregular/uneven

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

1.6 Cleavage

Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect

3,6

1.7 Mohs Hardness

3-3.55.5

2 10

1.8 Chemical Composition

Not Available

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

Baryte and Lapis lazuli Chemical Formula

While comparing Baryte 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 Baryte and Lapis lazuli chemical formula.

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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Baryte and Lapis lazuli Specific Gravity

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