Pollucite and Caledonite Physical Properties

Pollucite

Caledonite

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

2.86-2.945.6-5.76

1 7.18

1.5 Fracture

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

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

None observed

[001] perfect; [100] distinct

1.7 Mohs Hardness

6.5-72.5-3

2 10

1.8 Chemical Composition

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

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Pollucite and Caledonite Chemical Formula

While comparing Pollucite and Caledonite 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 Caledonite 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 Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Compare White Gemstones

Pollucite Vs Rutilated Quartz

Pollucite Vs Rubellite

Pollucite Vs Sard

Pollucite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.