Tags: Chemical Substance, Mineral.
Celadonite is a mica group mineral a phyllosilicate of potassium iron in both oxidation states aluminium and hydroxide with formula: K(MgFe2+)(Fe3+Al)[Si4O10](OH)2.It crystallizes in the monoclinic system and usually forms massive aggregates of prismatic crystallites or in dull clay masses. It is soft with a Mohs hardness of 2 and a specific gravity of 3. Typically occurs as dull gray-green to bluish green masses.