Prehnite and Stichtite Physical Properties

Prehnite

Stichtite

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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

2.80-2.952.11-2.20

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Distinct on [001]

Perfect on {0001}

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Prehnite and Stichtite Chemical Formula

While comparing Prehnite and Stichtite 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 Stichtite chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)
Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Prehnite and Stichtite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prehnite and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Stichtite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.11-2.20 whereas that of Stichtite is 2.11-2.20.