Lazulite and Calcite Physical Properties

Lazulite

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.172.67-2.73

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

5.53

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Lazulite and Calcite Chemical Formula

While comparing Lazulite and Calcite 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 Calcite 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 Calcite- CaCO 3Ulrich Henn and Claudio C.

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Lazulite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.