Catapleiite and Lapis lazuli Physical Properties

Catapleiite

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

2.722.50-3.00

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

{110} Perfect, {010} Perfect

3,6

1.7 Mohs Hardness

5-65.5

2 10

1.8 Chemical Composition

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Catapleiite and Lapis lazuli Chemical Formula

While comparing Catapleiite 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 Catapleiite and Lapis lazuli chemical formula.

Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
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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Catapleiite and Lapis lazuli Specific Gravity

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