The Industrial Might of Connecticut Pegmatite
Many Connecticut pegmatite mines produced gem beryl. Probably the best known of these, the Roebling Mine in New Milford, was worked for feldspar, mica, and, from the 1880s to 1900, for gemquality beryl. During those years Tiffany amp; Co. bought more than 17,000 worth of rough, uncut gems from this mine.