Hurlbutite and Hercynite Physical Properties

Hurlbutite

Hercynite

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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

2.904.39

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

ConchoidalGemdat.org, Uneven

1.6 Cleavage

None

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

1.7 Mohs Hardness

67.5-8

2 10

1.8 Chemical Composition

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Hurlbutite and Hercynite Chemical Formula

While comparing Hurlbutite 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 Hurlbutite and Hercynite chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Hurlbutite and Hercynite Specific Gravity

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