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Willemite
Willemite

Scolecite
Scolecite



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Willemite
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Scolecite

Willemite and Scolecite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.89-4.182.20-2.23
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Irregular/uneven, Uneven

Cleavage

{0001}, {11 2 0} imperfect
Perfect on {110} and {1 1 0}

Mohs Hardness

5.55-5.5
2 10
👆🏻

Chemical Composition

Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Willemite and Scolecite Chemical Formula

While comparing Willemite 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 Willemite and Scolecite chemical formula.

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

Willemite and Scolecite Specific Gravity

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