Lazulite and Hercynite Physical Properties

Lazulite

Hercynite

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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

3.04-3.174.39

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Uneven

1.6 Cleavage

{001} Indistinct, {???} Indistinct

{111} Indistinct, {111} Indistinct, {111} Indistinct

1.7 Mohs Hardness

5.57.5-8

2 10

1.8 Chemical Composition

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

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Lazulite and Hercynite Chemical Formula

While comparing Lazulite and Hercynite 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 Lazulite and Hercynite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Lazulite and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 4.39 whereas that of Hercynite is 4.39.