Zincite and Prehnite Physical Properties

Zincite

Prehnite

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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

5.50-5.902.80-2.95

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

Distinct on [001]

1.7 Mohs Hardness

46-6.5

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Ca₂Al₂Si₃O₁₂(OH)

Zincite and Prehnite Chemical Formula

While comparing Zincite and Prehnite 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 Zincite and Prehnite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

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Zincite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zincite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.