Chalcedony and Cobaltite Physical Properties

Chalcedony

Cobaltite

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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

2.55-2.70

6.3

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

Absent

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

6.5-7

5.5

1.8 Chemical Composition

SiO₂

CoAsSAnthony et al , Handbook of mineralogy (2001)

Chalcedony and Cobaltite Chemical Formula

While comparing Chalcedony and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Chalcedony- SiO₂
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Chalcedony and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 6.3 whereas that of Cobaltite is 6.3.