Sardonyx and Pectolite Physical Properties

Sardonyx

Pectolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.74-2.90

1 7.18

1.5 Fracture

Not Available

Uneven, Gemstones (2009), Splintery

1.6 Cleavage

Not Available

Perfect on {100} and {001}

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Sardonyx and Pectolite Chemical Formula

While comparing Sardonyx and Pectolite 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 Sardonyx and Pectolite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

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Sardonyx and Pectolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Pectolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Pectolite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 2.74-2.90 whereas that of Pectolite is 2.74-2.90.