Pietersite and Lapis lazuli Physical Properties

Pietersite

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

Not Available2.50-3.00

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

3,6

1.7 Mohs Hardness

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

Pietersite and Lapis lazuli Chemical Formula

While comparing Pietersite 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 Pietersite 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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Pietersite and Lapis lazuli Specific Gravity

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