Faustite and Halite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Water-soluble
Durability
Not Available
Not Available
Specific Gravity
2.9
2.17
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Conchoidal, Brittle, Metallic
Cleavage
{???} Indistinct
Perfect {001}, three directions cubic
Mohs Hardness
4.5
2.0-2.5
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
NaCl
Faustite and Halite Chemical Formula
While comparing Faustite and Halite 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 Halite 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 Halite- NaCl
Faustite and Halite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Halite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Halite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.17 whereas that of Halite is 2.17.