Apophyllite KF and Vivianite Physical Properties

Apophyllite KF

Vivianite

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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

2.33-2.372.64-2.70

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

(e.g. graphite).

1.6 Cleavage

Perfect on {001}, imperfect on {110}

{010} Perfect

1.7 Mohs Hardness

4.5-5Not Available

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Apophyllite KF and Vivianite Chemical Formula

While comparing Apophyllite KF and Vivianite 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 Vivianite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

Apophyllite KF Vs Nepouite

Apophyllite KF Vs Hauyne

Apophyllite KF Vs Langbeinite

Apophyllite KF and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.