Basic Introduction to Nudan Stone
Nudan Stone is a naturally formed marvel, originating from Wulong Village, Koudian Town, Luoyang City, Henan Province, China. This non-renewable and rare resource features white or light green flowers scattered randomly on black marble, resembling peonies in a natural and whimsical manner. The international stone community recognizes it as a world wonder, with limited reserves, high aesthetic value, and great collectibility, ranking it among the world's rarities. In correspondence with the long cultural history of Luoyang peonies, it is regarded as a specialty product of Luoyang.
Product Features
Nudan Stone is a decorative stone characterized by its five-petal flower pattern, belonging to the granite family. Its surface is blackish-gray, adorned with light green five-petal flowers that create a striking contrast. Formed 1.5 billion years ago, multiple long crystal aggregates form spherical structures, resembling peony flowers when cut. The stone is hard, fine-grained, and smooth, with elegant and graceful flowers appearing to be embedded within. It originates from the oldest strata of the Dengfeng Group of the Archean Eon. It boasts superior performance, a unique style, resistance to weathering, durability, no radioactivity, and enhances visual and ecological environments. Black stone bearing white flowers, white flowers contrasting against black stone, black and white intertwined, creating an intriguing spectacle. The hardness of the black stone reaches 6 on the Mohs scale, comparable to granite; the white flowers have a hardness of 7, rivaling that of jade.
Historical Folklore
The primary origin of Nudan Stone is Wulong Village, Koudian Town, Luoyang City, Henan Province, China.
According to geological dating, its formation occurred approximately 300 to 400 million years ago. A remarkable stone, with a fine texture and a black base color, interspersed with white or green patterns, resembles peonies in a lifelike manner. Some patterns appear like buds, others like fully bloomed flowers, closely resembling peonies, hence the name Nudan Stone. It is a non-renewable and rare resource. The international stone community recognizes it as a world wonder and lists it among the world's rarities.
The base color of Nudan Stone is black, and the stone body is evenly distributed with many white or green crystalline bodies, resembling a bouquet of fragrant peonies, some in bud, others in full bloom, thus earning the name “Nudan Stone.” The village of Wulong in Koudian Town, Yanshi City, located about ten kilometers east of the renowned Longmen Grottoes of Luoyang, is known as the hometown of Nudan Stone. The town got its name due to the famous Song Dynasty chancellor Kou Zhun's stay here, while the Nudan Stones are nestled within the folds of Mount Wanan. According to experts, Nudan Stone formed during a tectonic movement 1.5 billion years ago, when crystal-like intermediate-basic volcanic rocks mixed with other magma flows. Its basic rock composition is equivalent to marble in hardness, while the scattered or clustered crystals are of gemstone quality hardness. Over time, shaped by nature, Nudan Stone has become a rare beauty among stones, embodying the essence of mountains and rivers, poetry, and picturesque charm.