The Arthur Ross Terrace will be closed this morning, Tuesday, October 21, for a private cultural observance. You many observe smoke and/or fire coming from the Terrace at that time. The FDNY has been notified in advance, and all safety precautions are in place. The Terrace will reopen at 1 pm.
This slate was also once a shale. Because the shale was metamorphosed only slightly, its textures changed little. This sample is from the Grenville slate, widely used for roofing.
Provided by Vermont Structural Slate Company, Grenville, New York