Dioptase with Fibrous Malachite, Kimbedi Congo

Deep emerald-green Dioptase crystals blanket this striking specimen from the renowned Kimbedi locality in the Republic of the Congo. The lustrous, well-formed crystals are complemented by delicate sprays of fibrous Malachite that weave naturally across the surface, creating a beautiful contrast in both texture and colour. The combination of sharp crystal faces and velvety Malachite makes this an eye-catching display piece from one of the world's finest Dioptase-producing regions.

Specimen Details

✓ Mineral: Dioptase
✓ Associated Minerals: Fibrous Malachite, Matrix
✓ Locality: Kimbedi, Mindouli, Brazzaville, Republic of the Congo
✓ Crystal System: Trigonal
✓ Colour: Emerald Green with Deep Green Fibrous Malachite
✓ Lustre: Vitreous (Dioptase), Silky to Velvety (Malachite)
✓ Transparency: Transparent to Translucent
✓ Crystal Habit: Well-formed Prismatic Crystals with Fibrous Malachite Growths on Matrix
✓ Specimen Size: Approximately 42 mm × 50 mm × 17 mm
✓ Weight: 40 g

The Dioptase crystals exhibit the superb vitreous lustre and rich emerald-green colour that have made this mineral one of the most desirable copper silicates among collectors. The fibrous Malachite formed during a later stage of mineralisation, producing delicate silky tufts that wind naturally between the Dioptase crystals without obscuring their sharp crystal form.

Specimens displaying both lustrous Dioptase and attractive fibrous Malachite are especially sought after because they record multiple stages of copper mineral formation within the same deposit. The contrasting crystal habits and shades of green create a specimen that is as scientifically interesting as it is visually impressive.

Whether displayed in a fine mineral cabinet or added to a Congo locality collection, this Dioptase with Fibrous Malachite on Matrix is a beautiful natural specimen showcasing the exceptional mineralogy for which the Mindouli district is internationally renowned.