Tourmaline and Legrandite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
3.98-4.04
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Indistinct
Imperfect, poor one {100}
Mohs Hardness
7-7.5
4.5-5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline and Legrandite Chemical Formula
While comparing Tourmaline and Legrandite 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 Tourmaline and Legrandite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline and Legrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.