Demineralibus is a specialist online shop devoted to minerals, fossils, gemstones, and related collecting accessories. Founded by Giovanni Lombardi, a lifelong collector and researcher, the brand grew from a personal passion into a professional business. Its work includes mineral collecting and research in Italy and abroad, particularly in Canada, alongside the sale of specimens and accessories. Demineralibus operates within Gio Gems, a firm that also sells gems, and provides a dedicated website for its mineral-focused offerings.

The catalogue features mineral specimens organized by locality and mineral classification. Locations represented include Tuscany, Elba Island, the Apuan Alps, Sardinia, Morocco, Namibia, Tanzania, Canada, and the United States, among others. Examples shown include chrysocolla, calcite with chalcopyrite, vesuvianite, and pyrite on hematite. The shop also lists fossils, micromounts, books and magazines, and miscellaneous collecting items. Customers can browse featured products, compare items, create wishlists, and place orders through the online store. Demineralibus presents its selection for collectors interested in specimens from varied regions and geological groups, supported by the owner’s collecting experience and professional commitment.