6621 x 5192 px | 56,1 x 44 cm | 22,1 x 17,3 inches | 300dpi
Aufnahmedatum:
4. Februar 2026
Weitere Informationen:
Fibrous malachite (often marketed as “velvet malachite”) is a secondary copper carbonate that forms in the oxidized zone of copper deposits, where circulating groundwater and CO₂ convert primary copper sulfides into bright green malachite. In the Katanga Copperbelt of the Democratic Republic of the Congo, it commonly develops as tight radiating fibrous aggregates with a silky luster and noticeable chatoyance, reflecting the crystal fibers’ parallel to sub-parallel growth. The DRC’s Katanga region is one of the world’s most prolific sources of collectible malachite, including fibrous/crystalline habits from major mining districts across the copperbelt.
