Foitite and Smoky Quartz Physical Properties

Foitite

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.172.65

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

None

{0110} Indistinct

1.7 Mohs Hardness

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)

SiO₂

Foitite and Smoky Quartz Chemical Formula

While comparing Foitite and Smoky Quartz 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 Smoky Quartz 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 Smoky Quartz- SiO₂

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Foitite and Smoky Quartz Specific Gravity

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