👉 Galena, a mineral with the chemical formula CaCO3, is often referred to as "galena" or "cobaltite". It is commonly used in mining and construction industries for its high content of cobalt. Galena has been known since ancient times and was first described by the Chinese astrologer Song Dynasty (960-1279 CE) in a famous text, "The Book of Changes," which describes it as a valuable mineral for use in medicine.
