Thomsonite and Prase Opal Physical Properties

Thomsonite

Prase 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

2.25-2.401.98-2.25

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

perfect on {010}; good on {100}

Not Available

1.7 Mohs Hardness

5-5.55-6.5

2 10

1.8 Chemical Composition

NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

Thomsonite and Prase Opal Chemical Formula

While comparing Thomsonite 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 Thomsonite and Prase Opal chemical formula.

Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Thomsonite and Prase Opal Specific Gravity

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