Malachite Sphere $79.99This Malachite Sphere highlights the rich green tones and natural banding that make this copperbased mineral so distinctive in geology. Shaped into a smooth, polished sphere, it offers a clear view of the minerals internal patterns while creating an engaging piece for desks, shelves, and classroom collections. Its an excellent choice for students exploring mineral formation, collectors building a reference set, and anyone who enjoys keeping a small,