Lazulite and Apophyllite KF Physical Properties

Lazulite

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.172.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

5.54.5-5

2 10

1.8 Chemical Composition

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

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Lazulite and Apophyllite KF Chemical Formula

While comparing Lazulite and Apophyllite KF 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 Apophyllite KF 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 Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Lazulite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.