Lazurite and Sylvite Physical Properties

Lazurite

Sylvite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.751.993

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

Imperfect on {110}

Perfect on [100], [010], [001]

1.7 Mohs Hardness

5.52.5

2 10

1.8 Chemical Composition

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

Not Available

Lazurite and Sylvite Chemical Formula

While comparing Lazurite and Sylvite 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 Lazurite and Sylvite chemical formula.

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

Compare Blue Gemstones

Lazurite Vs Moroxite

Lazurite Vs Morion

Lazurite Vs Moss Agate

Lazurite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 1.993 whereas that of Sylvite is 1.993.