Natural Chrysolite — Rough

Chrysolite is a variety of the olivine group, with a chemical formula (Mg,Fe)₂SiO₄, corresponding to intermediate to magnesium-rich compositions between the end-members forsterite (Mg₂SiO₄) and fayalite (Fe₂SiO₄). It forms in mafic and ultramafic igneous rocks, such as basalts and peridotites, as well as high-grade metamorphic rocks and meteorites. Its characteristic yellowish-green to olive green color results from the presence of iron (Fe²⁺) partially replacing magnesium in the crystalline structure. The intensity of the green is directly related to the proportion of iron in the composition: the higher the concentration of Fe²⁺, the more intense and darker the green hue. Hardness: 6.5 to 7 on the Mohs scale. Density: 3.2 to 3.4 g/cm³. Crystalline system: orthorhombic. Available variations, approximate data: 1 to 3 cm — Approx. 0.010 kg — 250 pcs per kg 3 to 6 cm — 0.030 to 0.150 kg — 30 pieces per kg 6 to 15 cm — 0.150 to 0.800 kg — 2 to 3 pieces per kg