Riebeckite and Franklinite Physical Properties

Riebeckite

Franklinite

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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

3.28-3.445.05-5.22

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

None

1.7 Mohs Hardness

5.0-6.05.5-6

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Franklinite Chemical Formula

While comparing Riebeckite and Franklinite 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 Riebeckite and Franklinite chemical formula.

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

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Riebeckite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.