Pollucite and Dumortierite Physical Properties

Pollucite

Dumortierite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in HF

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.943.26-3.41

1 7.18

1.5 Fracture

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

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

None observed

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

6.5-77-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Pollucite and Dumortierite Chemical Formula

While comparing Pollucite and Dumortierite 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 Dumortierite 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 Dumortierite- AlAl₆O₃BSi₃O₁₈

Compare White Gemstones

Pollucite Vs Sard

Pollucite Vs Rutilated Quartz

Pollucite Vs Rubellite

Pollucite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.