Williamsite and Pectolite Physical Properties

Williamsite

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

2.51-2.632.74-2.90

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

Uneven, Gemstones (2009), Splintery

1.6 Cleavage

Not Available

Perfect on {100} and {001}

1.7 Mohs Hardness

44.5-5

2 10

1.8 Chemical Composition

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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

Williamsite and Pectolite Chemical Formula

While comparing Williamsite 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 Williamsite and Pectolite chemical formula.

Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

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Williamsite and Pectolite Specific Gravity

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