Chrysocolla and Pollucite Physical Properties

Chrysocolla

Pollucite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

2.00-2.452.86-2.94

1 7.18

1.5 Fracture

Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

none

None observed

1.7 Mohs Hardness

2-46.5-7

2 10

1.8 Chemical Composition

Cu₂H₂Si₂O₅(OH)₄

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Chrysocolla and Pollucite Chemical Formula

While comparing Chrysocolla and Pollucite 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 Chrysocolla and Pollucite chemical formula.

Chemical formula of Chrysocolla- Cu₂H₂Si₂O₅(OH)₄
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Chrysocolla and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysocolla and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysocolla and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Chrysocolla is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.