Dioptase Crystal Cluster on Matrix – Mindouli, Congo

This exceptional Dioptase specimen features a beautifully developed crystal-lined pocket filled with lustrous emerald-green crystals that contrast dramatically against the warm brown matrix. The sharply formed crystals display outstanding vitreous lustre and excellent definition, creating a specimen with remarkable depth, sparkle, and visual impact. An attractive cabinet piece that perfectly showcases why Mindouli Dioptase is regarded among the world's finest.

Specimen Details

✓ Mineral: Dioptase
✓ Associated Minerals: Matrix
✓ Locality: Kimbedi, Mindouli, Brazzaville, Republic of the Congo
✓ Crystal System: Trigonal
✓ Colour: Intense Emerald Green
✓ Lustre: Vitreous
✓ Transparency: Transparent to Translucent
✓ Crystal Habit: Well-formed Prismatic Crystals lining a natural vug
✓ Specimen Size: Approximately 76 mm × 46 mm × 28 mm
✓ Weight: 92 g

The famous copper deposits of Kimbedi near Mindouli in the Republic of the Congo have produced some of the most desirable Dioptase specimens ever discovered. Their intensely saturated green colour, sharp crystal morphology and exceptional brilliance have established this locality as a benchmark for fine Dioptase, with specimens highly sought after by collectors worldwide.

This specimen displays an attractive, naturally formed crystal pocket densely lined with well-developed crystals that produce exceptional sparkle from every viewing angle. The contrasting earthy matrix frames the crystal-lined cavity beautifully, enhancing both the colour and three-dimensional presentation. Specimens combining vivid colour, strong lustre, and an aesthetic composition such as this are increasingly difficult to obtain as production from classic localities becomes more limited.

Whether destined for a specialised Dioptase collection, a suite of fine copper minerals, or an advanced cabinet featuring classic African localities, this is a display-quality specimen that offers both visual appeal and long-term collector interest.