size 12 x 7,5 x 4 cm -Weght - 350 grams Conichalcite with Cuprian Adamite ,luxurious specimen from Greece, amazing color, green raw clean crystals, createa wonderful composition in the limonite matrix From ''Esperanza'' mine Lavrion Mining District, Lavreotiki, East Attica, Greece Conichalcite is an arsenic mineral of calcium and copper. It got its name from the Greek words konis and halkos due to its texture and chemical composition. Due to its frequent coexistence with red-yellow limonite it gives specimens with very beautiful colors, which are sought after by mineral collectors. Adamite is a secondary arsenic mineral of zinc. It is named after the French mineralogist Gilbert Joseph Adam (1795–1881), who provided the first specimens for study will be sent with a security number