Goshenite and Lapis lazuli Physical Properties

Goshenite

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

2.60-2.90

2.50-3.00

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

3,1 basal

3,6

1.7 Mohs Hardness

7.5-8

5.5

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Goshenite and Lapis lazuli Chemical Formula

While comparing Goshenite 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 Goshenite and Lapis lazuli chemical formula.

Chemical formula of Goshenite- Be₃Al₂SiO₆
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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Goshenite and Lapis lazuli Specific Gravity

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