Milarite and Poudretteite Physical Properties

Milarite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.52-2.602.51-2.53

1 7.18

1.5 Fracture

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

Conchoidal, Splintery

1.6 Cleavage

{0001} Imperfect, {1120} Imperfect

None

1.7 Mohs Hardness

5.5-65

2 10

1.8 Chemical Composition

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

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Milarite and Poudretteite Chemical Formula

While comparing Milarite and Poudretteite 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 Milarite and Poudretteite chemical formula.

Chemical formula of Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare White Gemstones

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Milarite Vs Nepheline

Milarite Vs Natrolite

Milarite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Milarite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Milarite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Milarite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.