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Fluorite
Fluorite

Willemite
Willemite



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Fluorite
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Willemite

Fluorite and Willemite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

slightly water soluble and in hot hydrochloric acid
-

Durability

-
-

Specific Gravity

3.00-3.253.89-4.18
1 7.18
👆🏻

Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann
Conchoidal, Uneven

Cleavage

Octahedral, perfect on {111}, parting on {011}
{0001}, {11 2 0} imperfect

Mohs Hardness

45.5
2 10
👆🏻

Chemical Composition

CaF2
Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Fluorite and Willemite Chemical Formula

While comparing Fluorite and Willemite 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 Fluorite and Willemite chemical formula.

  • Chemical formula of Fluorite- CaF2
  • Chemical formula of Willemite- Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Fluorite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.