Prehnite and Scheelite Physical Properties

Prehnite

Scheelite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-2.955.9-6.3

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven

1.6 Cleavage

Distinct on [001]

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

1.7 Mohs Hardness

6-6.54.5-5

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Prehnite and Scheelite Chemical Formula

While comparing Prehnite and Scheelite 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 Scheelite chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Prehnite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prehnite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.