Chalcedony and Orthoclase Physical Properties

Chalcedony

Orthoclase

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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

2.55-2.702.54-2.61

1 7.18

1.5 Fracture

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

Gems, Uneven

1.6 Cleavage

Absent

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

SiO₂

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Chalcedony and Orthoclase Chemical Formula

While comparing Chalcedony and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Chalcedony- SiO₂
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chalcedony and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.