Hurlbutite and Pyrophyllite Physical Properties

Hurlbutite

Pyrophyllite

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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

2.902.65-2.90

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

None

{001} Perfect

1.7 Mohs Hardness

6Not Available

2 10

1.8 Chemical Composition

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Hurlbutite and Pyrophyllite Chemical Formula

While comparing Hurlbutite and Pyrophyllite 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 Hurlbutite and Pyrophyllite chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hurlbutite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.