Foitite and Nepheline Physical Properties

Foitite

Nepheline

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.172.55-2.65

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

[1010] Poor

1.7 Mohs Hardness

75-6

2 10

1.8 Chemical Composition

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

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

Foitite and Nepheline Chemical Formula

While comparing Foitite 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 Foitite and Nepheline chemical formula.

Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare Violet Gemstones

Foitite Vs Hydrogrossular

Foitite Vs Labradorite

Foitite Vs Hureaulite

Foitite and Nepheline Specific Gravity

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