Simpsonite and Chalcedony Physical Properties

Simpsonite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.55-2.70

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

None

Absent

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

SiO₂

Simpsonite and Chalcedony Chemical Formula

While comparing Simpsonite and Chalcedony 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 Simpsonite and Chalcedony chemical formula.

Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Chemical formula of Chalcedony- SiO₂

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Simpsonite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Simpsonite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.