Chalcedony and Thomsonite Physical Properties

Chalcedony

Thomsonite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.25-2.40

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

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

1.6 Cleavage

Absent

perfect on {010}; good on {100}

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

SiO₂

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

Chalcedony and Thomsonite Chemical Formula

While comparing Chalcedony and Thomsonite 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 Chalcedony and Thomsonite chemical formula.

Chemical formula of Chalcedony- SiO₂
Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chalcedony and Thomsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.