Sellaite and Thomsonite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.14-3.16
2.25-2.40
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {010} and {110}
perfect on {010}; good on {100}
Mohs Hardness
5-5.5
5-5.5
Chemical Composition
MgF 2Ulrich Henn and Claudio C.
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sellaite and Thomsonite Chemical Formula
While comparing Sellaite and Thomsonite 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 Thomsonite chemical formula.
- Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sellaite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sellaite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.