Olive green prismatic olivenite crystals are arranged on a goethite matrix, along with dark green cornwallite and light green malachite aggregates. Brazil seems to have a little bit of everything when it comes to deposits, and even though it's best known for it gem pegmatites, there are all sorts of curious localities like Ibiajara where copper minerals (and even a little gold) have been found.

In this aesthetic specimen we can observe several small rhombohedral crystals, with an orange-yellow color, of this very rare strontium aluminum phosphate-sulphate. They are arranged on a matrix with magnesite and numerous crystals of brown fluor-uvite, very well defined and transparent.

Group of very well defined fluor-uvite crystals with a characteristic olive green color, with an excellent transparence. They are disposed on a matrix formes by magnesite crystals, between transparent to translucent. The contrast with the matrix is very aesthetic. Most specimens historically designate as uvite are actually, as analyses have shown, the F-dominant end member: fluor-uvite. Those from this mine have been shown to be the fluorine phase.

These alluvial peble specimens of bahianite are a remarkable rarity due to the composition. It is the only known pure aluminum antimonate. Structurally related to simpsonite (Ta instead of Sb). It is normally found as rolled pellets in the Pico das Almas river, in Brazil. It comes from this type locality for the species.

From an not well-known Brazilian locality for the species, a colorful and aesthetic specimen formed by green malachite rosette-shaped pseudomorphs after azurite scattered over matrix of limonite. Good size and excellent shape.

Three prismatic Topaz crystals with well defined faces and edges, very transparent and showing a delicate and uniform pinkish tone. Very fluorescent. Implanted on a Quartz crystal matrix.