Dioptase Crystal Thumbnail Specimen

From the famed Tsumeb mine in Namibia, this Dioptase Crystal Thumbnail captures the vivid emerald-green glow that defines this mineral. Measuring 19 mm x 20 mm x 11 mm, it offers a compact, display-ready profile that fits neatly into any mineral cabinet or desk collection while still delivering a striking presence. Vivid emerald-green dioptase with a glassy to vitreous luster that reflects light from every angle, making the crystals appear almost to glow in bright display lighting. Natural crystal form showcases classic dioptase habit—sharp, well-formed faces with clean edges that highlight the mineral’s internal geometry and color saturation. Storied provenance—sourced from Tsumeb, Namibia, a locality renowned among collectors for producing some of the most color-rich and well-terminated dioptase specimens in the world. Ideal for display and study—the thumbnail size makes it a versatile centerpiece for a small cabinet, a teaching aid in mineralogy, or a standout addition to a cu