Apophyllite KF and Hurlbutite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.33-2.37
2.90
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Perfect on {001}, imperfect on {110}
None
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Apophyllite KF and Hurlbutite Chemical Formula
While comparing Apophyllite KF and Hurlbutite 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 Apophyllite KF and Hurlbutite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Apophyllite KF and Hurlbutite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.90 whereas that of Hurlbutite is 2.90.