Pollucite and Moonstone Physical Properties
Solubility
Readily soluble in HF
-
Specific Gravity
2.86-2.94
2.56-2.60
Fracture
Conchoidal, Uneven
Uneven, ConchoidalWalter Schumann
Cleavage
None observed
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Pollucite and Moonstone Chemical Formula
While comparing Pollucite and Moonstone 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 Pollucite and Moonstone chemical formula.
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Pollucite and Moonstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.