Hollandite and Lazulite Physical Properties

Hollandite

Lazulite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.053.04-3.17

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

Distinct / Good, Prismatic

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

4-65.5

2 10

1.8 Chemical Composition

Ba(Mn++++,Mn++)8O16

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Hollandite and Lazulite Chemical Formula

While comparing Hollandite and Lazulite 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 Hollandite and Lazulite chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Hollandite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.