Apophyllite KF and Danburite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.33-2.37
2.97-3.03
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Perfect on {001}, imperfect on {110}
{001} Poor
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apophyllite KF and Danburite Chemical Formula
While comparing Apophyllite KF and Danburite 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 Danburite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apophyllite KF and Danburite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Danburite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.97-3.03 whereas that of Danburite is 2.97-3.03.