Pyrophyllite and Ulexite Physical Properties

Pyrophyllite

Ulexite

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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

2.65-2.901.65-1.99

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic

1.6 Cleavage

{001} Perfect

{010} Perfect, {110} Perfect

1.7 Mohs Hardness

Not Available2-2.5

2 10

1.8 Chemical Composition

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

NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Pyrophyllite and Ulexite Chemical Formula

While comparing Pyrophyllite and Ulexite 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 Ulexite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Pyrophyllite and Ulexite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.