Scapolite and Pectolite Physical Properties

Scapolite

Pectolite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.58-2.742.74-2.90

1 7.18

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Fracture

ConchoidalWalter Schumann, Splintery

Uneven, Splintery

Cleavage

{100} Distinct, {110} Distinct

Perfect on {100} and {001}

Mohs Hardness

5.5-64.5-5

2 10

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Chemical Composition

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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

Scapolite and Pectolite Chemical Formula

While comparing Scapolite 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 Scapolite and Pectolite chemical formula.

Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Compare Violet Gemstones

Scapolite Vs Hodgkinsonite

Scapolite Vs Foitite

Scapolite Vs Eudialyte

Scapolite and Pectolite Specific Gravity

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