Adamite and Apophyllite KF Physical Properties

Adamite

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

2.33-2.37

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

{101}, good; {010}, poor

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

3.5

4.5-5

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Adamite and Apophyllite KF Chemical Formula

While comparing Adamite 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 Adamite and Apophyllite KF chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Adamite and Apophyllite KF Specific Gravity

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