very long emerald crystals with smoky quartz, galena, muscovite and pyrite in the mother rock

An exceptional specimen with long emerald crystals from Guilin, China, embedded in a matrix of smoky quartz, galena, muscovite, and pyrite. Five minerals from a hydrothermal genesis in one piece.

Emerald is the chromium-bearing gemstone variety of beryl. The intense green coloration comes from traces of trivalent chromium in the hexagonal beryl lattice. Long emerald crystals of collector quality are rare worldwide, and in combination with this variety of associated minerals, they represent a deposit sensation.

The combination of smoky quartz + galena + muscovite + pyrite indicates a complex hydrothermal mineralization phase. Galena is lead sulfide, pyrite is iron sulfide; both sulfide minerals together with mica and quartz document an ore vein environment.

Such polymineralic emerald specimens are classified as top gemmological pieces in the collector's trade. They combine gemstone substance with a didactic deposit narrative.

A collector's item with premium gemmological substance and hydrothermal educational value.