👉 Platymyoids are a group of highly mobile and flexible, often spherical, structures that appear in the Earth's crust. These particles are composed primarily of calcium carbonate and may contain other minerals such as iron, magnesium, and silicon. They are found throughout the Earth's crust, including in the layers between plates and on continental margins where they can move freely due to their shape and density. Platymyoids have a number of important roles in geology and Earth sciences. They are
