Black Agate - 17x14x4 cm - Geode- 0.95 kg

Black agate is a variety of chalcedony quartz known for its deep black color and smooth, often banded appearance. This black agate specimen takes the form of a geode, measuring about 17x14x4 cm and weighing approximately 0.95 kg. Agate geodes feature an outer layer of solid chalcedony with an interior cavity lined with crystals, which in black agate may be subtle or crystalline quartz formations. Throughout history, black agate has been used in jewelry and ornamental objects due to its attractive luster and durability. Geodes such as this serve as fascinating natural artifacts showcasing the slow crystallization of minerals inside rock cavities. They are popular among collectors and those interested in natural history, geology, or as a decorative accent with understated elegance stemming from their dark, glossy tones.