Citrine and Lapis lazuli Physical Properties

Citrine

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

2.652.50-3.00

1 7.18

1.5 Fracture

ConchoidalMichael OâDonoghue, Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

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

1.6 Cleavage

Indiscernible

3,6

1.7 Mohs Hardness

75.5

2 10

1.8 Chemical Composition

SiO₂

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

Citrine and Lapis lazuli Chemical Formula

While comparing Citrine 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 Citrine and Lapis lazuli chemical formula.

Chemical formula of Citrine- SiO₂
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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Citrine and Lapis lazuli Specific Gravity

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