Pollucite and Ludlamite Physical Properties

Pollucite

Ludlamite

Add ⊕

1 Physical Properties

2.2 Tenacity

Brittle

Not Available

2.3 Solubility

Readily soluble in HF

Not Available

2.4 Durability

Not Available

2.6 Specific Gravity

2.86-2.943.1-3.2

1 7.18

2.9 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

2.10 Cleavage

None observed

Vitreous, pearly on cleavage

2.11 Mohs Hardness

6.5-73-4

2 10

2.12 Chemical Composition

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

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pollucite and Ludlamite Chemical Formula

While comparing Pollucite and Ludlamite 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 Ludlamite 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 Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare White Gemstones

Pollucite Vs Rubellite

Pollucite Vs Rutilated Quartz

Pollucite Vs Sard

Pollucite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.