Tags: Chemical Substance, Mineral.
Clintonite is a calcium magnesium aluminium phyllosilicate mineral. It is a member of the margarite group of micas and the subgroup often referred to as the brittle micas. Clintonite has the chemical formula: Ca(MgAl)3(Al3Si)O10(OH)2. Like other micas and chlorites clintonite is monoclinic in crystal form and has a perfect basal cleavage parallel to the flat surface of the plates or scales. The Mohs hardness of clintonite is 6.5 and the specific gravity is 3.0 to 3.1.
