Cuprite and Polyhalite Physical Properties

Cuprite

Polyhalite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.85-6.152.78

1 7.18

1.5 Fracture

Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, Brittle

1.6 Cleavage

Fair in four directions forming octahedrons

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

1.7 Mohs Hardness

3.5-43.5

2 10

1.8 Chemical Composition

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Not Available

Cuprite and Polyhalite Chemical Formula

While comparing Cuprite and Polyhalite 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 Cuprite and Polyhalite chemical formula.

Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

Cuprite Vs Franklinite

Cuprite Vs Fluorite

Cuprite Vs Friedelite

Cuprite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cuprite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 2.78 whereas that of Polyhalite is 2.78.