Jatkoiny
Jatkoiny, also known as continuation minerals, are a group of minerals that are formed through the alteration or replacement of pre-existing minerals. This process typically occurs in low-temperature, near-surface environments, where the original minerals are unstable and undergo chemical and physical changes. Jatkoiny are commonly found in hydrothermal veins, weathering profiles, and sedimentary rocks. They often exhibit unique textures and compositions that reflect the conditions under which they formed. Examples of jatkoiny include chlorite, sericite, and epidote, which are commonly found in association with quartz and other silicate minerals. The study of jatkoiny provides valuable insights into the geological history of an area, as well as the processes that have shaped the Earth's crust over time.