Cupropavonite is a relatively rare mineral belonging to the sulfide mineral group. It is composed of copper, lead, antimony, and sulfur, with the chemical formula Cu0.9Pb1.97Sb2.03S5. Cupropavonite typically forms in hydrothermal deposits, which are formed when hot fluids rich in mineral ions circulate through fractures and cavities in rocks.
Physically, cupropavonite has a metallic gray-black color with a dark gray streak. It often exhibits granular or fibrous crystal formations, with a hardness of around 3.5 on the Mohs scale. Its specific gravity ranges between 5.86 and 6.1, indicating its density compared to water.
The mineral cupropavonite was first discovered in the 19th century, and its name is derived from the Latin words "cuprum" (meaning copper) and "pavoninus" (meaning peacock-colored). This name alludes to the brilliant iridescent colors that can be seen on certain specimens due to thin layers of oxidation or alteration.
Cupropavonite commonly occurs in association with other sulfide minerals such as galena, jamesonite, pyrite, and sphalerite. It is primarily found in regions with hydrothermal activity, including certain areas of Europe, Asia, Africa, and North America.
While cupropavonite does not hold significant industrial or economic importance on its own, it is highly valued among mineral collectors and enthusiasts for its unique crystal formations and distinctive colors. Its rarity, coupled with its striking appearance, makes it a sought-after addition to mineral collections worldwide.
