Indicolite Blue Tourmaline and Apophyllite KF Physical Properties

Indicolite Blue Tourmaline

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

3.05-3.112.33-2.37

1 7.18

1.5 Fracture

Not Available

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Not Available

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

7-7.54.5-5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Indicolite Blue Tourmaline and Apophyllite KF Chemical Formula

While comparing Indicolite Blue Tourmaline 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 Indicolite Blue Tourmaline and Apophyllite KF chemical formula.

Chemical formula of Indicolite Blue Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Indicolite Blue Tourmaline and Apophyllite KF Specific Gravity

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