Hercynite and Faustite Physical Properties

Hercynite

Faustite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.392.9

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

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

{???} Indistinct

1.7 Mohs Hardness

7.5-84.5

2 10

1.8 Chemical Composition

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

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Hercynite and Faustite Chemical Formula

While comparing Hercynite and Faustite 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 Faustite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Yellow Gemstones

Hercynite Vs Kyanite Cyprine

Hercynite Vs Legrandite

Hercynite Vs Jeremejevite

Hercynite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.9 whereas that of Faustite is 2.9.