Franklinite and Apophyllite KF Physical Properties

Franklinite

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

5.05-5.222.33-2.37

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

None

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

5.5-64.5-5

2 10

1.8 Chemical Composition

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Franklinite and Apophyllite KF Chemical Formula

While comparing Franklinite 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 Franklinite and Apophyllite KF chemical formula.

Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Franklinite and Apophyllite KF Specific Gravity

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