Rosasite and Hercynite Physical Properties

Rosasite

Hercynite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.24.39

1 7.18

1.5 Fracture

Splintery

ConchoidalGemdat.org, Uneven

1.6 Cleavage

Perfect on {100} and {010}

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

1.7 Mohs Hardness

47.5-8

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Hercynite Chemical Formula

While comparing Rosasite and Hercynite 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 Rosasite and Hercynite chemical formula.

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

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Rosasite and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rosasite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rosasite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Rosasite is 4.39 whereas that of Hercynite is 4.39.