Pollucite and Natrolite Physical Properties

Pollucite

Natrolite

Add ⊕

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

2.86-2.942.20-2.26

1 7.18

1.5 Fracture

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

Uneven, Brittle, Metallic, Gemstones (2009)

1.6 Cleavage

None observed

Perfect on {110}

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

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

Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pollucite and Natrolite Chemical Formula

While comparing Pollucite and Natrolite 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 Natrolite 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 Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare White Gemstones

Pollucite Vs Sard

Pollucite Vs Rubellite

Pollucite Vs Rutilated Quartz

Pollucite and Natrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.