Nepheline and Scolecite Physical Properties

Nepheline

Scolecite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.20-2.23

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

[1010] Poor

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

5-65-5.5

2 10

1.8 Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Nepheline and Scolecite Chemical Formula

While comparing Nepheline and Scolecite 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 Nepheline and Scolecite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Nepheline and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.