Franklinite and Labradorite Physical Properties

Franklinite

Labradorite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.05-5.222.69-2.72

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Franklinite and Labradorite Chemical Formula

While comparing Franklinite and Labradorite 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 Labradorite chemical formula.

Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Franklinite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.