Glendonite is a pseudomorfose of calcite after Ikaite. This Ikaite contains water molecules during the crystallization and can only form in extremely cold temperatures. When the matrix - usually a sicilicum mud around the Ikaite crystal warms due to climate change, the Ikaite crystal lapse back into an aqueous solution, which is recrystallized by time as calcite. The Calcite closes the gap that was left after the sunken Ikaite and reproduces his pseudomorfose vorm.vooral occurring in Olenitsa, Russia. The mineral calcite (also known as calcite) consists mainly of the salt is calcium carbonate (CaCO3), and is one of the most common mineral in the earth's crust. Calcium carbonate is caused by soluble calcium ions come in contact with CO2 (carbon dioxide forms a carbonate ion as a positive ion is in a solution). Calcium carbonate is a poorly soluble salt, which makes the formed CaCO3 precipitates; this is going according to the following reaction: Ca2 + (aq) + CO32- (aq) - → CaCO3 (s).