Lapis lazuli and Dioptase Physical Properties

Lapis lazuli

Dioptase

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.50-3.003.25-3.35

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

3,6

Perfect in three directions

1.7 Mohs Hardness

5.55

2 10

1.8 Chemical Composition

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

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lapis lazuli and Dioptase Chemical Formula

While comparing Lapis lazuli and Dioptase 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 Dioptase 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 Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Sagittarius

Lapis lazuli Vs Sodalite

Lapis lazuli Vs Spinel

Lapis lazuli Vs Smoky Quartz

Lapis lazuli and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.