Pectolite and Williamsite Physical Properties

Pectolite

Williamsite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.902.51-2.63

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

Perfect on {100} and {001}

Not Available

1.7 Mohs Hardness

4.5-54

2 10

1.8 Chemical Composition

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

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

Pectolite and Williamsite Chemical Formula

While comparing Pectolite and Williamsite 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 Pectolite and Williamsite chemical formula.

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

Compare Colorless Gems

Pectolite Vs Phosphosiderite

Pectolite Vs Pleonaste

Pectolite Vs Phosphophyllite

Pectolite and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.