Foitite and Axinite Physical Properties

Foitite

Axinite

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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

3.173.26-3.36

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Good on {100}

1.7 Mohs Hardness

76.5-7

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)

(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Foitite and Axinite Chemical Formula

While comparing Foitite and Axinite 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 Axinite 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 Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Violet Gemstones

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Foitite and Axinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Foitite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.