Malachite and Tourmaline Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.25-4.10
2.85-3.35
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on { 2 01} fair on {010}
Indistinct
Mohs Hardness
3.5-4
7-7.5
Chemical Composition
Cu2CO3(OH)2
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Malachite and Tourmaline Chemical Formula
While comparing Malachite 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 Malachite and Tourmaline chemical formula.
- Chemical formula of Malachite- Cu2CO3(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.
Malachite and Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.