Boulder Opal and Thomsonite Physical Properties

Boulder Opal

Thomsonite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

1.98-2.25

Conchoidal

None

5-6.5

SiO 2 + H 2OUlrich Henn and Claudio C.

2.25-2.40

perfect on {010}; good on {100}

5-5.5

NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Boulder Opal and Thomsonite Chemical Formula

While comparing Boulder Opal and Thomsonite 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 Thomsonite chemical formula.

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Boulder Opal and Thomsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal Vs Thomsonite during the identification of gemstone. Specific gravity of Boulder Opal is whereas that of Thomsonite is .