1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.8 Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Irregular/uneven, Brittle, Metallic
1.9 Cleavage
1.10 Mohs Hardness
1.12 Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas.
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)