Aragonite and Apophyllite KF Physical Properties
Solubility
Dilute acid
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
2.33-2.37
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Brittle, Uneven, Brittle, Uneven
Cleavage
Distinct on {010}, imperfect {110} and {011}
Perfect on {001}, imperfect on {110}
Mohs Hardness
3.5-4
4.5-5
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
Aragonite and Apophyllite KF Chemical Formula
While comparing Aragonite and Apophyllite KF 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 Aragonite and Apophyllite KF chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Aragonite and Apophyllite KF Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.