mineral

Botryoidal Malachite

Malachite - Cu2CO3(OH)2

Hardness: 3.5-4.0 (Mohs). Color: Bright green to dark green, often banded. Luster: Silky to dull/earthy. Crystal structure: Monoclinic. Cleavage: Perfect in one direction, though rarely seen in massive forms. Specific gravity: 3.6-4.0.

Hardness: 3
Color: Bright green to dark green, often banded
Luster: Silky to dull/earthy

Identified March 24, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the weathering and oxidation of primary copper ore deposits (supergene enrichment). It precipitate from carbonated water percolating through copper-rich rock. Common in the oxidation zones of copper deposits.

Uses & applications

Used primarily as a decorative stone, in jewelry (cabochons and beads), and historically as a green pigment in paints. It is also an ore of copper and a popular mineral specimen for collectors.

Geological facts

Malachite often grows alongside blue Azurite. It has been used as a gemstone and sculptural material for thousands of years, notably by the Ancient Egyptians for amulets and the Czars of Russia for architectural columns and the 'Malachite Room' in the Winter Palace.

Field identification & locations

Identify by its distinctive 'bubble-like' botryoidal texture and vibrant green color that does not fade in light. Found worldwide, with major deposits in the Democratic Republic of the Congo, Namibia, and Arizona, USA. Collectors look for high luster and deep, velvet banding.