Adamite and Prase Opal Physical Properties

Adamite

Prase Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.481.98-2.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{101}, good; {010}, poor

Not Available

1.7 Mohs Hardness

3.55-6.5

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

SiO 2 + H 2OUlrich Henn and Claudio C.

Adamite and Prase Opal Chemical Formula

While comparing Adamite and Prase 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 Prase Opal chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Adamite and Prase Opal Specific Gravity

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