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Sylvite
Sylvite

Boulder Opal
Boulder Opal



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Sylvite
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Boulder Opal

Sylvite and Boulder Opal Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

1.9931.98-2.25
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

Perfect on [100], [010], [001]
None

Mohs Hardness

2.55-6.5
2 10
👆🏻

Chemical Composition

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

Sylvite and Boulder Opal Chemical Formula

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

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

Sylvite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.