This sample of chondrodite is displayed in the Smithsonian Museum of Natural History. Chondrodite is a silicate mineral that contains magnesium and fluorine with the composition (Mg,Fe)₅(SiO₄)₂(F,OH)₂. This sample is about 20x12 cm and is and is characterized as chondrodite with chlorite. It is from the Tilly Foster mine, Brewster, New York.