Nepheline and Moonstone Physical Properties

Nepheline

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.55-2.65

Subconchoidal, Conchoidal

[1010] Poor

5-6

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

2.56-2.60

Uneven, ConchoidalWalter Schumann

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

6-6.5

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Nepheline and Moonstone Chemical Formula

While comparing Nepheline and Moonstone 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 Moonstone chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Compare Red Gemstones

Nepheline Vs Realgar

Nepheline Vs Rhodizite

Nepheline Vs Rhodolite

Nepheline and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.