Thulite and Wood Opal Physical Properties

Thulite

Wood Opal

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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

3.11.98-2.50

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

Perfect {010} imperfect {100}

Not Available

1.7 Mohs Hardness

6-75.5-6.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Thulite and Wood Opal Chemical Formula

While comparing Thulite and Wood 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 Thulite and Wood Opal chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Thulite and Wood Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Wood Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Wood Opal Optical Properties during the identification of gemstone. Specific gravity of Thulite is 1.98-2.50 whereas that of Wood Opal is 1.98-2.50.