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Polyhalite
Polyhalite

Stolzite
Stolzite



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Polyhalite
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Stolzite

Polyhalite and Stolzite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.782
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal, Uneven

Cleavage

Perfect on {10 1 }; parting on {010}
Imperfect on {001}, indistinct on {011}

Mohs Hardness

3.52.5-3
2 10
👆🏻

Chemical Composition

K2Ca2Mg(SO4)4·2H2O
PbWO4

Polyhalite and Stolzite Chemical Formula

While comparing Polyhalite and Stolzite 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 Polyhalite and Stolzite chemical formula.

  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
  • Chemical formula of Stolzite- PbWO4

Polyhalite and Stolzite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Stolzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Stolzite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2 whereas that of Stolzite is 2.