Agate Opal and Apophyllite KF Physical Properties

Agate Opal

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

1.98-2.502.33-2.37

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Not Available

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

5.5-6.54.5-5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Agate Opal and Apophyllite KF Chemical Formula

While comparing Agate Opal 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 Agate Opal and Apophyllite KF chemical formula.

Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Agate Opal and Apophyllite KF Specific Gravity

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