Columbite

Columbite is a niobium-bearing mineral prized for its lustrous, black to brownish-black crystals and strong, well-formed structures. Often occurring in prismatic to blocky habits, it is known for its metallic luster and striking presence on the matrix. These fine mineral specimens of columbite are valued by collectors for their rarity, sharp crystal forms, and association with pegmatite environments, making them desirable for collections.