Pectolite and Spodumene Physical Properties

Pectolite

Spodumene

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.903.15-3.21

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Perfect on {100} and {001}

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

1.7 Mohs Hardness

4.5-56-7

2 10

1.8 Chemical Composition

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

LiAlSi₂O₆

Pectolite and Spodumene Chemical Formula

While comparing Pectolite and Spodumene 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 Spodumene chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Spodumene- LiAlSi₂O₆

Compare Colorless Gems

Pectolite Vs Phosphophyllite

Pectolite Vs Pleonaste

Pectolite Vs Phosphosiderite

Pectolite and Spodumene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.