Franklinite and Shigaite Physical Properties

Franklinite

Shigaite

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1 Physical Properties

1.1 Tenacity

Not Available

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.05-5.222.32

1 7.18

1.5 Fracture

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

Flexible Flexible fragments.

1.6 Cleavage

None

Perfect on {0001}

1.7 Mohs Hardness

5.5-62

2 10

1.8 Chemical Composition

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

Not Available

Franklinite and Shigaite Chemical Formula

While comparing Franklinite and Shigaite 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 Shigaite chemical formula.

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

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Franklinite and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 2.32 whereas that of Shigaite is 2.32.