Creedite and Lazulite Physical Properties

Creedite

Lazulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.703.04-3.17

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {100}

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

4.55.5

2 10

1.8 Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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

Creedite and Lazulite Chemical Formula

While comparing Creedite 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 Creedite and Lazulite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Compare Colorless Gems

Creedite Vs Dravite

Creedite Vs Diopside

Creedite Vs Diaspore

Creedite and Lazulite Specific Gravity

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