Dioptase from Congo Natural Crystal Mineral Specimen

Bright emerald-green Dioptase crystals cover this attractive specimen from the famous Kimbedi locality in the Republic of the Congo. The display features numerous sharply formed trigonal crystals with excellent vitreous lustre, creating a sparkling carpet of crystals across the natural matrix. Several larger, well-developed crystals stand proudly above the smaller crystal layer, giving the specimen excellent depth and visual appeal.

Specimen Details

✓ Mineral: Dioptase
✓ Locality: Kimbedi, Mindouli, Brazzaville, Republic of the Congo
✓ Crystal System: Trigonal
✓ Colour: Emerald Green
✓ Lustre: Vitreous
✓ Transparency: Transparent to Translucent
✓ Crystal Habit: Well-formed Prismatic Crystals on Matrix
✓ Specimen Size: Approximately 29 mm × 59 mm × 13 mm
✓ Weight: 27 g

Dioptase is prized for its vibrant emerald-green colour and exceptional crystal brilliance. It forms in the oxidised zones of copper deposits, where silica-rich fluids react with copper minerals to produce its distinctive transparent to translucent crystals. Its intense colour and limited occurrence have made it one of the world's most sought-after secondary copper minerals.

Collected from the renowned Kimbedi deposit, this Dioptase from Congo is a beautiful natural specimen that showcases the exceptional crystal quality for which this locality is internationally recognised.