Simpsonite and Prehnite Physical Properties

Simpsonite

Prehnite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.80-2.95

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

None

Distinct on [001]

1.7 Mohs Hardness

7-7.56-6.5

2 10

1.8 Chemical Composition

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

Ca₂Al₂Si₃O₁₂(OH)

Simpsonite and Prehnite Chemical Formula

While comparing Simpsonite 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 Simpsonite and Prehnite chemical formula.

Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

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Simpsonite and Prehnite Specific Gravity

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