Hercynite and Andradite Physical Properties

Hercynite

Andradite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.393.70-4.10

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

none

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

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

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Hercynite and Andradite Chemical Formula

While comparing Hercynite and Andradite 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 Andradite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Compare Yellow Gemstones

Hercynite Vs Jeremejevite

Hercynite Vs Kyanite Cyprine

Hercynite Vs Legrandite

Hercynite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.