Franklinite and Obsidian Physical Properties

Franklinite

Obsidian

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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

5.05-5.222.35-2.60

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

5.5-65-5.5

2 10

1.8 Chemical Composition

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

Not Available

Franklinite and Obsidian Chemical Formula

While comparing Franklinite and Obsidian 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 Obsidian 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 Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.