Phenakite and Scolecite Physical Properties

Phenakite

Scolecite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.20-2.23

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Phenakite and Scolecite Chemical Formula

While comparing Phenakite and Scolecite 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 Phenakite and Scolecite chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Compare Colorless Gems

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Phenakite and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.