Faustite and Elbaite Physical Properties

Faustite

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

2.9

2.90-3.10

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

{???} Indistinct

Poor/indistinct on {1120} and {1011}

1.7 Mohs Hardness

4.5

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 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

Faustite and Elbaite Chemical Formula

While comparing Faustite 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 Faustite and Elbaite chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 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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Faustite and Elbaite Specific Gravity

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