The mineral clinochlore was first identified in 1851 in West Chester, Pennsylvania, but has since been discovered in a number of additional locales in the United States, including New York, Arizona, and New Jersey. Clinochlore can also be found in various other parts of the world, such as Spain, Switzerland, Russia, Turkey, and Italy. Similar to other chlorites, clinochlore exhibits perfect cleavage. The substance is also rather soft and displays a pearly, vitreous luster.