Auction Win: Manganese Oxide (Botryoidal)

Locality: Anti-Atlas Mountains, Morocco

Size: Miniature - 4.75 × 5 × 2.5 cm

Manganese oxide is a generic term for manganese oxides and hydroxides with uncertain composition, including minerals like pyrolusite (MnO2) and manganite (MnOOH). It was first described as a group in early mineralogical studies, with the name derived from the Latin "magnes" for magnet, reflecting its association with magnetic properties in some forms. Manganese is a critical mineral used industrially to produce steel and batteries for electric vehicles, making it essential for modern transportation.

The Anti-Atlas Mountains form the southernmost of Morocco's four principal mountain ranges and contain some of the world's largest and most diverse mineral resources, most of which remain untouched. This geologically rich region in southern Morocco is known for producing notable specimens including hematite, trachyte, bornite, quartz, gypsum, and chalcanthite. Collectors today value the Anti-Atlas for its exceptional mineral diversity and the potential to discover rare, high-quality specimens from its vast, largely unexplored deposits. The area's significance lies in its status as a premier global locality for diverse and pristine mineral collections.