Magnesite is a magnesium carbonate, with the chemical formula MgCO3. It is often found in veins and in products of alteration of ultramafic rocks rich in magnesium. It can also originate from the metamorphism of calcareous rocks rich in magnesium, in which case black-white masses are formed with elongated magnesite crystals. Ground chalk is both used by athletes to wipe sweat off their hands and applied to equipment to reduce slipperiness.
Dimensions
Stones thickness (cm): 1.1
Bracelet diameter (cm): 5.3
Weight (g): 27
Property
Chemical Formula: MgCO3
Mohs scale: 4
Relative Density: 3
Crystalline System: Trigonal