Agate and Lazurite Physical Properties

Agate

Lazurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.64

2.75

1.5 Fracture

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Indiscernible

Imperfect on {110}

1.7 Mohs Hardness

6.5-7

5.5

1.8 Chemical Composition

SiO₂

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Agate and Lazurite Chemical Formula

While comparing Agate and Lazurite 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 Agate and Lazurite chemical formula.

Chemical formula of Agate- SiO₂
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Agate and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Agate and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Agate is 2.75 whereas that of Lazurite is 2.75.