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Adamite and Boulder Opal Physical Properties


Boulder Opal and Adamite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.32-4.48   
1.98-2.25   

Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
{101}, good; {010}, poor   
Not Available   

Mohs Hardness
3.5   
5-6.5   

Chemical Composition
Zn 2(AsO 4)(OH)Michael O’Donoghue , Gems, Sixth edition (2006)   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Adamite and Boulder Opal Chemical Formula

While comparing Adamite and Boulder 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 Adamite and Boulder Opal chemical formula.

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Adamite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adamite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Adamite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.

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