Faustite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.9
2.69-2.72
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
{???} Indistinct
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Ca)1-2Si3-2O8
Faustite and Labradorite Chemical Formula
While comparing Faustite and Labradorite 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 Labradorite 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 Labradorite- (Na,Ca)1-2Si3-2O8
Faustite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.