Lapis lazuli and Hibonite Physical Properties

Lapis lazuli

Hibonite

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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

2.50-3.003.84

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

3,6

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

5.57.5-8

2 10

1.8 Chemical Composition

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

(Ca,Ce)(Al,Ti,Mg)12O19

Lapis lazuli and Hibonite Chemical Formula

While comparing Lapis lazuli and Hibonite 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 Lapis lazuli and Hibonite 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
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Lapis lazuli and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.84 whereas that of Hibonite is 3.84.