Elbaite and Marcasite Physical Properties

Elbaite

Marcasite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.104.80-4.90

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

{010} Indistinct

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Elbaite and Marcasite Chemical Formula

While comparing Elbaite and Marcasite 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 Elbaite and Marcasite chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Elbaite Vs Gahnospinel

Elbaite Vs Hackmanite

Elbaite Vs Gahnite

Elbaite and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.