Tags: Chemical Substance, Mineral.
Glauconite also known as ‘green sand’ is an iron potassium phyllosilicate (mica group) mineral of characteristic green color with very low weathering resistance and very friable.It crystallizes with a monoclinic geometry. Its name is derived from the Greek glaucos (γλαυκος) meaning ‘blue’ referring to the common blue-green color of the mineral; its sheen (mica glimmer) and blue-green color presumably relating to the sea’s surface.
