Charlesite and Prase Opal Physical Properties

Charlesite

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

1.791.98-2.25

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

Not Available

1.7 Mohs Hardness

2.55-6.5

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

SiO 2 + H 2OUlrich Henn and Claudio C.

Charlesite and Prase Opal Chemical Formula

While comparing Charlesite 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 Charlesite and Prase Opal chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Charlesite and Prase Opal Specific Gravity

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