Ulexite and Elbaite Physical Properties

Ulexite

Elbaite

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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

1.65-1.992.90-3.10

1 7.18

1.5 Fracture

UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic

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

1.6 Cleavage

{010} Perfect, {110} Perfect

Poor/indistinct on {1120} and {1011}

1.7 Mohs Hardness

2-2.57

2 10

1.8 Chemical Composition

NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Ulexite and Elbaite Chemical Formula

While comparing Ulexite and Elbaite 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 Ulexite and Elbaite chemical formula.

Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
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

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Ulexite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ulexite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ulexite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Ulexite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.