Boulder Opal and Moonstone Physical Properties

Boulder Opal

Moonstone

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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.

2.56-2.60

Uneven, ConchoidalWalter Schumann

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

6-6.5

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Boulder Opal and Moonstone Chemical Formula

While comparing Boulder Opal and Moonstone 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 Moonstone chemical formula.

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Boulder Opal and Moonstone Specific Gravity

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