Lazurite and Willemite Physical Properties

Lazurite

Willemite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.753.89-4.18

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Imperfect on {110}

{0001}, {11 2 0} imperfect

1.7 Mohs Hardness

5.55.5

2 10

1.8 Chemical Composition

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazurite and Willemite Chemical Formula

While comparing Lazurite and Willemite 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 Lazurite and Willemite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Lazurite Vs Moroxite

Lazurite Vs Morion

Lazurite Vs Moss Agate

Lazurite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.