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.

This sample of chondrodite is also from the Tilly Foster mine, Brewster, New York. It is about 5x8 cm.