Hercynite and Rhodolite Physical Properties

Hercynite

Rhodolite

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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

4.393.84

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Conchoidal

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

none, may show indistinct parting

1.7 Mohs Hardness

7.5-87-7.5

2 10

1.8 Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

(Mg,Fe)₃Al₂Si₃O₁₂

Hercynite and Rhodolite Chemical Formula

While comparing Hercynite and Rhodolite 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 Hercynite and Rhodolite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Hercynite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.84 whereas that of Rhodolite is 3.84.