Jeremejevite and Lapis lazuli Physical Properties

Jeremejevite

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

3.28-3.312.50-3.00

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

None observed

3,6

1.7 Mohs Hardness

6.5-7.55.5

2 10

1.8 Chemical Composition

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

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

Jeremejevite and Lapis lazuli Chemical Formula

While comparing Jeremejevite 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 Jeremejevite and Lapis lazuli chemical formula.

Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
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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Jeremejevite and Lapis lazuli Specific Gravity

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