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Faustite
Faustite

Taaffeite
Taaffeite



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Faustite and Taaffeite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.9
3.60-3.61
1.5 Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Conchoidal
1.6 Cleavage
{???} Indistinct
Imperfect/fair/absent
1.7 Mohs Hardness
4.5
8-8.5
1.8 Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Faustite and Taaffeite Chemical Formula

While comparing Faustite and Taaffeite 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 Taaffeite chemical formula.

  • Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Faustite and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.