Milarite and Crystal Opal Physical Properties

Milarite

Crystal Opal

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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

2.52-2.601.97-2.22

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{0001} Imperfect, {1120} Imperfect

Not Available

1.7 Mohs Hardness

5.5-65.5-6.5

2 10

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Milarite and Crystal Opal Chemical Formula

While comparing Milarite and Crystal Opal 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 Crystal Opal 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 Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Milarite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Milarite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Milarite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Milarite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.