Elbaite and Diopside Physical Properties

Elbaite

Diopside

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.103.22-3.40

1 7.18

1.5 Fracture

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

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

Distinct/good on {110}

1.7 Mohs Hardness

75-6

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

CaMgSi₂O₆

Elbaite and Diopside Chemical Formula

While comparing Elbaite and Diopside 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 Diopside 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 Diopside- CaMgSi₂O₆

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Elbaite and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.