Franklinite and Montebrasite Physical Properties

Franklinite

Montebrasite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

5.05-5.222.98-3.10

1 7.18

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Fracture

Uneven

Uneven, Conchoidal

Cleavage

None

{100} Perfect, {110} Good, {011} Distinct

Mohs Hardness

5.5-65.5-6

2 10

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Chemical Composition

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

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Franklinite and Montebrasite Chemical Formula

While comparing Franklinite and Montebrasite 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 Montebrasite chemical formula.

Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Red Gemstones

Franklinite Vs Manganotantalite

Franklinite Vs Microlite

Franklinite Vs Mimetite

Franklinite and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.