ludlockite

Ludlockite is a rare mineral that was first discovered in the Kombat Mine, Namibia. It is a member of the torbernite group, which are known for their distinctive green color and hydrated copper arsenate composition. The chemical formula for ludlockite is Cu2(AsO4)2•2H2O. It typically forms as small, prismatic crystals, often appearing in aggregates or as coatings on other minerals. Ludlockite's color can range from yellowish-green to emerald green, and it has a vitreous luster. It is a relatively soft mineral, with a Mohs hardness of 2.5 to 3. The mineral is named in honor of geologist Arthur Ludlock. Due to its rarity and specific formation conditions, ludlockite is primarily of interest to mineral collectors and researchers studying secondary copper minerals. It is usually found in oxidized zones of copper deposits where arsenate minerals are present. The presence of ludlockite indicates a specific geochemical environment within these mineral deposits.