Scapolite and Nepheline Physical Properties

Scapolite

Nepheline

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.742.55-2.65

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery

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

1.6 Cleavage

{100} Distinct, {110} Distinct

[1010] Poor

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 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

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

Scapolite and Nepheline Chemical Formula

While comparing Scapolite and Nepheline 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 Nepheline 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 Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Scapolite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scapolite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.