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Crystal Opal
Crystal Opal

Phlogopite
Phlogopite



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Crystal Opal
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Phlogopite

Crystal Opal and Phlogopite Physical Properties

Physical Properties

Tenacity

-
Tough

Solubility

-
-

Durability

-
-

Specific Gravity

1.97-2.222.78-2.85
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
Perfect basal (001)

Mohs Hardness

5.5-6.52-2.5
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
KMg3(Si3Al)O10(F,OH)2

Crystal Opal and Phlogopite Chemical Formula

While comparing Crystal Opal and Phlogopite 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 Crystal Opal and Phlogopite chemical formula.

  • Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2

Crystal Opal and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.