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Boulder Opal
Boulder Opal

Fluorite
Fluorite



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Boulder Opal
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Fluorite

Boulder Opal and Fluorite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
slightly water soluble and in hot hydrochloric acid

Durability

-
-

Specific Gravity

1.98-2.253.00-3.25
1 7.18
👆🏻

Fracture

Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

None
Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

5-6.54
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
CaF2

Boulder Opal and Fluorite Chemical Formula

While comparing Boulder Opal and Fluorite 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 Boulder Opal and Fluorite chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Fluorite- CaF2

Boulder Opal and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.