Esperite and Nepheline Physical Properties

Esperite

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

4.28-4.422.55-2.65

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

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

1.6 Cleavage

Distinct on [010] and [100] poor on [101]

[1010] Poor

1.7 Mohs Hardness

5-5.55-6

2 10

1.8 Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

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

Esperite and Nepheline Chemical Formula

While comparing Esperite 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 Esperite and Nepheline chemical formula.

Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare White Gemstones

Esperite Vs Hardystonite

Esperite Vs Hydrogrossular

Esperite Vs Hackmanite

Esperite and Nepheline Specific Gravity

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