Rhyolite and Lazurite Physical Properties

Rhyolite

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

Not Available2.75

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Imperfect on {110}

1.7 Mohs Hardness

75.5

2 10

1.8 Chemical Composition

Not Available

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

Rhyolite and Lazurite Chemical Formula

While comparing Rhyolite 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 Rhyolite and Lazurite chemical formula.

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

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Rhyolite and Lazurite Specific Gravity

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