Pollucite and Adamite Physical Properties

Pollucite

Adamite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Readily soluble in HF

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.944.32-4.48

1 7.18

1.5 Fracture

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

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

None observed

{101}, good; {010}, poor

1.7 Mohs Hardness

6.5-73.5

2 10

1.8 Chemical Composition

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

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Pollucite and Adamite Chemical Formula

While comparing Pollucite and Adamite 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 Pollucite and Adamite chemical formula.

Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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Pollucite and Adamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.