agate semigem geode with crystals on black background

purple circle eye violet petal blue invertebrate jewellery produce lilac crystal mineral rock gem jewel quartz geology background stone geode gemstone rough abstract agate geological isolated beauty black macro nature texture beautiful closeup natural esoteric harmony inside mystic open polished precious semi shiny sparkle wealth wellness clear section structures sphere mineralogy concretion septarian grey cutaway exhibit half interior substance collection crystalline eroded geo spherical boulder broken calcite carbonate detail erosion crystals riprese minerali naturali raccolta geologica cristallo quarzo sfondo nero