Thulite and Pollucite Physical Properties

Thulite

Pollucite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

3.12.86-2.94

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Perfect {010} imperfect {100}

None observed

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Thulite and Pollucite Chemical Formula

While comparing Thulite 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 Thulite and Pollucite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Compare Red Gemstones

Thulite Vs Tugtupite

Thulite Vs Verdite

Thulite Vs Uvite

Thulite and Pollucite Specific Gravity

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