Chondrodite
From Wikipedia, the free encyclopedia
Chondrodite is a nesosilicate mineral with formula (Mg,Fe)5(F,OH)2(SiO4)2. Although it is itself a fairly rare mineral it is the most frequently encountered member of the humite group of minerals. It is formed in hydrothermal deposits from locally metamorphosed dolomite. It is also found associated with skarn and serpentine.
It was discovered in 1817 on Mt Somma, part of the Vesuvius complex in Italy.