Pyrophyllite and Milarite Physical Properties

Pyrophyllite

Milarite

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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

2.65-2.902.52-2.60

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

{001} Perfect

{0001} Imperfect, {1120} Imperfect

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

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

KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrophyllite and Milarite Chemical Formula

While comparing Pyrophyllite and Milarite 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 Milarite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

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Pyrophyllite Vs Sardonyx

Pyrophyllite Vs Scorzalite

Pyrophyllite and Milarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.