Pink, Rose, & Green Watermelon Tourmaline Slice—Erongo Region, Namibia

Tourmaline is celebrated not only for its vitreous beauty, but also for its unparalleled spectrum of colors and color combinations, earning its place among the most vibrant gemstones...

Rhodochrosite stalactites are found exclusively in the Mina Capillitas (“little chapels”) mineral deposit of Argentina. Within each nondescript stalactite is a core with bands of blu...

Of all the incredible malachite specimens recovered from the Katanga Copper Crescent of the DRC, there is only one known incidence of a stalactite composed of chrysocolla with stunning malachite "eyes" and azurite rings...

Quartz can be found in nearly every corner of the earth, yet despite its abundance, there are some rarer varieties of quartz that differentiate themselves with their distinctive colo...

This is an attractive example from the Dongpo Ore Field of China. The best Dongpo fluorites are known for translucent crystals with great form and an attractive light green tone. This is a prime example featuring three sharp, cuboctahedral crystals in a saturated, seafoam green tone. The fluorites have multi-stepped faces along their sides and central faces that are smooth, acting like windows into the translucent crystals. The crystals’ lustrous sheen further highlights their intricate structure. They have formed atop a contrasting matrix (host-rock) of bladed, beige dolomite crystals. The dolomite is sharp and has formed in dense intergrown rosettes. Peeking out from under the dolomite and fluorites is a shimmering matrix of druzy, white quartz that frames the piece overall. The juxtaposition of textures, colors, and species makes the already colorful fluorite crystals...

Native silver is among a handful of minerals that have been deemed inherently valuable by mankind since antiquity. In the world of mineral collecting, silver specimens and sulfosalts...

From Erongo Mountains, 20 km north of Usakos, Damaraland, Namibia Lustrous transparent aquamarine crystals, the blue-green gem variety of the mineral species beryl, intersecting lus...

This gorgeous, vividly pigmented watermelon tourmaline slice features beautiful separation of color with a deep, solid, almost olive green ring around...

This gorgeous, vividly pigmented watermelon tourmaline slice features beautiful separation of color with a deep, solid, almost olive green ring around...

From Tafelkop, Goboboseb Mountains, Brandberg Mountain, Erongo, Namibia Lustrous 7" tall transparent deep-purple amethyst quartz crystals on brown-white matrix. The amethyst crystal...

An unusual sculptural arrangement of two clear quartz crystals, punctuated and adorned on all sides with dark green tourmaline, watermelon colour in cross section.

Dioptase, Omaue Mine, Kaokoveld Plateau, Kunene region, Namibia Measures: 8.5 cm tall x 7 cm wide Dioptase, once believed to be emerald when first encountered, is amongst the most vividly colored species. Large gem...