Polyhalite and Super Seven Crystals Physical Properties

Polyhalite

Super Seven Crystals

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.782.9

1 7.18

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Fracture

Conchoidal

Fibrous

Cleavage

Perfect on {10 1 }; parting on {010}

[010] Perfect, [100] Distinct, [011] Distinct

Mohs Hardness

3.52

2 10

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Chemical Composition

K2Ca2Mg(SO4)4·2H2O

Amethyst, Clear Quartz, Smoky Quartz, Cacoxenite, Rutile, Geothite, Lepidocrocite

Polyhalite and Super Seven Crystals Chemical Formula

While comparing Polyhalite and Super Seven Crystals 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 Super Seven Crystals chemical formula.

Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
Chemical formula of Super Seven Crystals- Amethyst, Clear Quartz, Smoky Quartz, Cacoxenite, Rutile, Geothite, Lepidocrocite

Compare Red Gemstones

Polyhalite Vs Erythrite

Polyhalite Vs Piemontite

Polyhalite Vs Carnallite

Polyhalite and Super Seven Crystals Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Super Seven Crystals Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Super Seven Crystals Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.9 whereas that of Super Seven Crystals is 2.9.