Beudantite and Achroite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.48
2.90-3.40
Fracture
Brittle, Metallic, Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
distinct; good on {0001}
Not Available
Mohs Hardness
3.5-4.5
7-7.5
Chemical Composition
PbFe+++3(AsO4)(SO4)(OH)6
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Beudantite and Achroite Chemical Formula
While comparing Beudantite and Achroite 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 Beudantite and Achroite chemical formula.
- Chemical formula of Beudantite- PbFe+++3(AsO4)(SO4)(OH)6
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Beudantite and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Beudantite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beudantite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Beudantite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.