Rosasite and Lazulite Physical Properties

Rosasite

Lazulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.23.04-3.17

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

Perfect on {100} and {010}

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

45.5

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Lazulite Chemical Formula

While comparing Rosasite 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 Rosasite and Lazulite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Rosasite and Lazulite Specific Gravity

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