Pyromorphite/Guangxi Province, China

That vivid lime-green specimen appears to be pyromorphite, a lead-based mineral known for its surreal, mossy growth and vibrant fluorescence under light.  It often forms in miniature, botryoidal clusters or spiky hexagonal crystals—like alien coral growing on a mountainside.This distinctive emerald-green hue originates exclusively from Chinese mineral deposits, displaying a chromatic signature unmatched by counterparts from global localities of the same species.The more complete the crystal, the greater the collection value.