Sellaite and Moonstone Physical Properties
Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.14-3.16
2.56-2.60
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect on {010} and {110}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
5-5.5
6-6.5
Chemical Composition
MgF 2Ulrich Henn and Claudio C.
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Sellaite and Moonstone Chemical Formula
While comparing Sellaite 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 Sellaite and Moonstone chemical formula.
- Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Sellaite and Moonstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sellaite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.
