Arfvedsonite and Tourmaline Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.3-3.5
2.85-3.35
Fracture
Uneven, Brittle, Metallic, Brittle, Metallic
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on [110]
Indistinct
Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Arfvedsonite and Tourmaline Chemical Formula
While comparing Arfvedsonite and Tourmaline 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 Arfvedsonite and Tourmaline chemical formula.
- Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Arfvedsonite and Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Arfvedsonite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Arfvedsonite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Arfvedsonite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.