Apophyllite KF and Elbaite Physical Properties

Apophyllite KF

Elbaite

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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

2.33-2.372.90-3.10

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

Perfect on {001}, imperfect on {110}

Poor/indistinct on {1120} and {1011}

1.7 Mohs Hardness

4.5-57

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Apophyllite KF and Elbaite Chemical Formula

While comparing Apophyllite KF and Elbaite 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 Apophyllite KF and Elbaite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

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Apophyllite KF and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.