Dioptase with Malachite from Congo Crystal Specimen

Deep emerald-green Dioptase crystals cover this attractive specimen from the famous Kimbedi deposit in the Republic of the Congo. The sharp, lustrous crystals are beautifully complemented by soft Malachite growths, creating a striking contrast in both texture and colour. Together, these two secondary copper minerals form a classic association that is highly regarded by mineral collectors.

Specimen Details

✓ Mineral: Dioptase
✓ Associated Minerals: Malachite, Matrix
✓ Locality: Kimbedi, Mindouli, Brazzaville, Republic of the Congo
✓ Crystal System: Trigonal
✓ Colour: Emerald Green with Deep Green Malachite
✓ Lustre: Vitreous (Dioptase), Silky to Velvety (Malachite)
✓ Transparency: Transparent to Translucent
✓ Crystal Habit: Well-formed Prismatic Crystals with Botryoidal Malachite on Matrix
✓ Specimen Size: Approximately 40 mm × 31 mm × 21 mm
✓ Weight: 27 g

Dioptase is prized for its vivid emerald-green colour and brilliant vitreous lustre, while the Malachite formed during a later stage of mineralisation, producing soft botryoidal coatings that enhance the specimen without obscuring the crystal faces. The contrast between the sharp Dioptase crystals and the velvety Malachite adds both visual appeal and geological interest.

Collected from the renowned copper deposits of Kimbedi, this Dioptase with Malachite from Congo is an attractive cabinet specimen that showcases one of the world's finest mineral associations from this famous locality.