Hercynite and Tanzanite Physical Properties

Hercynite

Tanzanite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

4.393.35

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Hercynite and Tanzanite Chemical Formula

While comparing Hercynite and Tanzanite 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 Tanzanite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

Compare Yellow Gemstones

Hercynite Vs Jeremejevite

Hercynite Vs Kyanite Cyprine

Hercynite Vs Legrandite

Hercynite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.35 whereas that of Tanzanite is 3.35.