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Pectolite
Pectolite

Feldspar
Feldspar



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Pectolite
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Feldspar

Pectolite and Feldspar Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.74-2.902.56-2.75
1 7.18
👆🏻

Fracture

Uneven, Splintery
Uneven, Conchoidal

Cleavage

Perfect on {100} and {001}
two or three

Mohs Hardness

4.5-56-6.5
2 10
👆🏻

Chemical Composition

Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
KAlSi3O8

Pectolite and Feldspar Chemical Formula

While comparing Pectolite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
  • Chemical formula of Feldspar- KAlSi3O8

Pectolite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.