A large, transparent, glassy, orthorhombic Natrolite crystal with a coating on one side. Such Natrolite crystals from this quarry are classic material. Of particular note in this specimen is the interior phantom near the termination.
Flaws: There are two chipped area along the edges of the termination. Also, there is a crack perpendicular to the C axis.
This mineral is also found in the following galleries: Minerals From New York, New Jersey and New England | Zeolites | Minerals Priced Between 50 and 99 Dollars