Lazulite and Gahnospinel Physical Properties

Lazulite

Gahnospinel

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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

3.04-3.173.65-4.55

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Indistinct, {???} Indistinct

None, but may exhibit slight parting

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Lazulite and Gahnospinel Chemical Formula

While comparing Lazulite and Gahnospinel 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 Gahnospinel 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 Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Lazulite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.