ALGINITE (from the Latin word "alga", which means "sea grass", "seaweed" * EN: alginite, exinite; DE: Alginitklasse; FR: alginite; ES: exinita; RU: альгинит) is the group of the micro-components of the fossil coals, which have formed themselves as the result of the transformation of the lower plants and plankton. It is subdivided into the talginite, which is the colonies of the algae, which are having the determined shape and size, and into the kalginite, which is the structureless sapropelic mass, which is cementing the structural elements and mineral admixtures. Alginite is the typical constituent part of the sapropelites.