Foitite and Hauyne Physical Properties

Foitite

Hauyne

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Gelatinises in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.172.4-2.5

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Uneven, Conchoidal, Brittle

1.6 Cleavage

None

Distinct on {110}

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,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Foitite and Hauyne Chemical Formula

While comparing Foitite and Hauyne 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 Hauyne 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 Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Compare Violet Gemstones

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Foitite and Hauyne Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Hauyne Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Hauyne Optical Properties during the identification of gemstone. Specific gravity of Foitite is 2.4-2.5 whereas that of Hauyne is 2.4-2.5.