Beudantite and Sillimanite Physical Properties

Beudantite

Sillimanite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.483.20-3.26

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Splintery

1.6 Cleavage

distinct; good on {0001}

{010} perfect

1.7 Mohs Hardness

3.5-4.56-7.5

2 10

1.8 Chemical Composition

PbFe+++3(AsO4)(SO4)(OH)6

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Beudantite and Sillimanite Chemical Formula

While comparing Beudantite and Sillimanite 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 Beudantite and Sillimanite chemical formula.

Chemical formula of Beudantite- PbFe+++3(AsO4)(SO4)(OH)6
Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Beudantite Vs Gibbsite

Beudantite Vs Gaspeite

Beudantite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beudantite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beudantite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Beudantite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.