Boulder Opal and Tantalite Physical Properties

Boulder Opal

Tantalite

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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

1.98-2.255.2

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Good in one direction

1.7 Mohs Hardness

5-6.56-6.5

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Boulder Opal and Tantalite Chemical Formula

While comparing Boulder Opal and Tantalite 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 Tantalite chemical formula.

Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

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Boulder Opal and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 5.2 whereas that of Tantalite is 5.2.