- Monazite-(Ce) in Sillimanite
- Small Cabinet, 8.1 x 6.0 x 2.8 cm
- Yantic Falls, Norwich, New London Co., Connecticut, USA
- Ex. Philadelphia Academy of Natural Sciences
A rare locality piece of monazite, in sillimanite. The sharp crystal noted is 5 or 6 mm and fully crystallized. From the noted colletion of Samuel Ashmead.