Nepheline and Hercynite Physical Properties

Nepheline

Hercynite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.654.39

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Uneven

1.6 Cleavage

[1010] Poor

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

1.7 Mohs Hardness

5-67.5-8

2 10

1.8 Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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

Nepheline and Hercynite Chemical Formula

While comparing Nepheline 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 Nepheline and Hercynite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Compare Red Gemstones

Nepheline Vs Prase Opal

Nepheline Vs Pyrope Spessartine

Nepheline Vs Pyrope

Nepheline and Hercynite Specific Gravity

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