Pyrophyllite and Gahnospinel Physical Properties

Pyrophyllite

Gahnospinel

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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

2.65-2.903.65-4.55

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Perfect

None, but may exhibit slight parting

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Pyrophyllite and Gahnospinel Chemical Formula

While comparing Pyrophyllite and Gahnospinel 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 Pyrophyllite and Gahnospinel chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Pyrophyllite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.