Dioptase Crystal Cluster on Matrix – Congo Mineral Specimen

This vibrant Dioptase Crystal Cluster showcases a dense display of rich emerald-green crystals from the famous copper deposits of Kimbedi, Mindouli, Brazzaville, Republic of Congo. Well-formed, lustrous dioptase crystals cover the matrix, creating a striking three-dimensional display with excellent contrast against the natural host rock. Numerous tiny pale green spherical mineral aggregates are scattered amongst the larger crystals, adding further interest and making this an outstanding collector's specimen.

Specimen Details

✓ Mineral: Dioptase with Associated Plancheite on Matrix
✓ Associated Mineral: Plancheite (spherical aggregates)
✓ Locality: Kimbedi, Mindouli, Brazzaville, Republic of Congo
✓ Weight: 65 grams
✓ Dimensions: 55 × 45 × 21 mm (Approximately)
✓ Crystal Habit: Lustrous prismatic Dioptase crystals with spherical Plancheite aggregates on natural matrix
✓ Colour: Deep emerald green with pale green associated mineral spheres and earthy matrix
✓ Display: Self-supporting cabinet specimen with excellent crystal coverage
✓ Collector Appeal: Fine Congo Dioptase specimen featuring an attractive mineral association, ideal for collectors of African minerals and copper mineral species.

Dioptase is one of the world's most sought-after copper minerals, prized for its vivid emerald-green colour, exceptional lustre, and beautifully formed crystals. Specimens from the Kimbedi area are especially desirable for their sharp crystal groups and striking mineral associations.

The tiny green spherical crystals scattered across this specimen are most likely Plancheite, a rare secondary copper silicate that commonly forms alongside Dioptase in the copper deposits of the Republic of Congo. These delicate spheres create an attractive contrast with the larger Dioptase crystals and add both visual appeal and geological interest.

Combining brilliant Dioptase crystals with associated Plancheite on natural matrix, this Dioptase Crystal Cluster is an exceptional display specimen and a superb addition to any mineral collection.