Dioptase is a rare and highly sought-after copper mineral, also known as "copper emerald" due to its emerald-green color. This wonderful specimen showcases pronounced, dark green to turquoise dioptase crystals on an attractive reddish-brown matrix – a true eye-catcher for any mineral enthusiast. The angular, prismatic crystals display the characteristic vitreous luster of this rare mineral in perfect form. Weighing 5.73g and with compact dimensions of 28×16×14mm, this specimen is a high-quality collector's item from the renowned locality of the Republic of Congo.
