This monstrous specimen presents thousands of grape-like botryoidal malachite nodules, each exhibiting a velvety surface and subtle druzy sparkle when illuminated. The formation captures a dynamic spectrum of deep, dark greens, from rich emerald tones to nearly black highlights, accentuating the botryoidal texture. Along the edges, a delicate banding of chrysocolla create a vivid contrast, the bright blues tracing the natural growth of the copper minerals over time. The interplay of these two mineral forms highlights both the structural complexity and visual depth of the specimen. Sourced from the renowned L’Étoile du Congo Mine, one of the most celebrated localities for botryoidal malachite, this specimen represents both aesthetic and geological significance, offering collectors a rare opportunity to acquire a mineral of true quality, character and scale. Specimen Details Minerals : Malachite (Cu₂CO₃(OH)₂) on Chrysocolla (Cu₂H₂Si₂O₅(OH)₄·nH₂O) Formation Type: Botryoidal nodules with velvety surface and druzy sparkle Colour: Deep dark green with areas of lighter green and almost black highlights; Chrysocolla swirls in striking blue Locality: L’Étoile du Congo Mine, Lubumbashi, Katanga, DR Congo Size: 254 mm × 152 mm (approx. 10” × 6”) Weight: 1.508 KG Provenance: Originating from a world renowned Congo copper mine Display Notes: Ideal as a centerpiece specimen or (very large) cabinet display; best appreciated under directional light to highlight velvety sheen and druzy sparkle Shipped safely and insured worldwide from the UK.