Overview Calcite is a common and highly diverse carbonate mineral, famous for its broad spectrum of colors and its striking crystal formations. It is found worldwide in sedimentary, metamorphic, and igneous rocks, often forming rhombohedral, prismatic, or scalenohedral (dog-tooth) crystals. Calcite is valued both…
Overview Carnotite is a vivid yellow to greenish-yellow mineral composed primarily of potassium, uranium, and vanadium. Recognized for its striking color and powdery appearance, carnotite is an important uranium ore and a minor source of vanadium. Due to its radioactivity, carnotite is handled mainly…
Overview Chalcopyrite is a striking copper iron sulfide mineral, easily recognized by its brassy golden-yellow color and metallic luster. Sometimes called “Peacock Ore” (though technically, that term better refers to bornite), chalcopyrite is often found with iridescent blues, greens, and purples when it tarnishes.…
Overview Copper is a native metallic element renowned for its distinctive reddish-brown color, excellent conductivity, and malleability. Found in both crystalline and massive forms, copper has been valued by humans for millennia—for tools, ornamentation, and as a medium of exchange. In the metaphysical realm,…
