Prehnite and Cobaltite Physical Properties

Prehnite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-2.956.3

1 7.18

1.5 Fracture

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

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

Distinct on [001]

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

1.7 Mohs Hardness

6-6.55.5

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

CoAsSAnthony et al , Handbook of mineralogy (2001)

Prehnite and Cobaltite Chemical Formula

While comparing Prehnite 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 Prehnite and Cobaltite chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Prehnite and Cobaltite Specific Gravity

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