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Apophyllite
Apophyllite

Jet
Jet



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Apophyllite
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Jet

Apophyllite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.30-2.501.19-1.35
1 7.18
👆🏻

Fracture

Uneven
ConchoidalWalter Schumann

Cleavage

Perfect on (001)
None

Mohs Hardness

4.5-52.5-4
2 10
👆🏻

Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
C

Apophyllite and Jet Chemical Formula

While comparing Apophyllite and Jet 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 Apophyllite and Jet chemical formula.

  • Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  • Chemical formula of Jet- C

Apophyllite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Jet Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 1.19-1.35 whereas that of Jet is 1.19-1.35.