Alizarin is often red, but this sample is Emerald Green.. This sample was probably part of the Loeb Collection of Chemical Types, a collection that was formed under the bequest of Morris Loeb ...

Image of the 168-carat emerald, bequeathed by Anna Cast Mackay to the Smithsonian Institution National Gem Collection, in 1984. The stunning Mackay Emerald was mined in Muzo, Colombia, and was placed ...

Emerald defines the new price/performance benchmark for all-in-one advanced digital archiving, HQS transcoding and content management. Integrating tightly into popular newsroom computer systems (NRCS) ...