Tags: Chemical Substance, Mineral.
Karlite (kar’-lite) is a silky white to light green orthorhombic borate mineral not to be confused with tremolite-actinolite. It has a general formula of Mg7(BO3)3(OH)4Cl. Karlite is named in honor of Franz Karl (1918–1972) professor of mineralogy and petrography at Christian Albrechts University in Kiel Germany for his studies of the geology of the eastern Alps.Karlite possesses moderate optical relief the degree to which the mineral grains stand out from the mounting medium.