Montebrasite and Thomsonite Physical Properties
Specific Gravity
2.98-3.10
2.25-2.40
Fracture
Uneven, Conchoidal
-
Cleavage
{100} Perfect, {110} Good, {011} Distinct
perfect on {010}; good on {100}
Mohs Hardness
5.5-6
5-5.5
Chemical Composition
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Montebrasite and Thomsonite Chemical Formula
While comparing Montebrasite 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 Montebrasite and Thomsonite chemical formula.
- Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Montebrasite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Montebrasite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.