Boulder Opal and Orthoclase Physical Properties

Boulder Opal

Orthoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.252.54-2.61

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Gems, Uneven

1.6 Cleavage

Not Available

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

5-6.56

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Boulder Opal and Orthoclase Chemical Formula

While comparing Boulder Opal and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Boulder Opal Vs Chrome-Chalcedony

Boulder Opal Vs Chrome Tourmaline

Boulder Opal Vs Chrysocolla

Boulder Opal and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.