Forsterite and Apophyllite KF Physical Properties

Forsterite

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

3.23-3.262.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Perfect on {010} imperfect on {100}

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Forsterite and Apophyllite KF Chemical Formula

While comparing Forsterite 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 Forsterite and Apophyllite KF chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

Compare Green Gemstones

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Forsterite Vs Grossular

Forsterite and Apophyllite KF Specific Gravity

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