Cordierite
Hungry Hill, Guilford, New Haven County, Connecticut, USA
A section of an altered cordierite crystal, apparently from an old collection with residue of a sticky label on one side and some faint numbers on both sides. Label from the Morris Museum of Arts and Sciences, Morristown, NJ says it is from Derby, Conn. However, cordierite is not known from there, or anywhere in western Connecticut. More likely ...
© 2020 Harold Moritz