Apophyllite KF and Indicolite Blue Tourmaline Physical Properties

Apophyllite KF

Indicolite Blue Tourmaline

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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

2.33-2.373.05-3.11

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Not Available

1.6 Cleavage

Perfect on {001}, imperfect on {110}

Not Available

1.7 Mohs Hardness

4.5-57-7.5

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) Formula given for elbaite.

Apophyllite KF and Indicolite Blue Tourmaline Chemical Formula

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

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
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.

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Apophyllite KF and Indicolite Blue Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Indicolite Blue Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Indicolite Blue Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.05-3.11 whereas that of Indicolite Blue Tourmaline is 3.05-3.11.