Franklinite and Spodumene Physical Properties

Franklinite

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.05-5.223.15-3.21

1 7.18

1.5 Fracture

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

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

None

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

1.7 Mohs Hardness

5.5-66-7

2 10

1.8 Chemical Composition

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

LiAlSi₂O₆

Franklinite and Spodumene Chemical Formula

While comparing Franklinite and Spodumene 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 Spodumene chemical formula.

Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Spodumene- LiAlSi₂O₆

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Franklinite and Spodumene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.