This sterling silver necklace has an amazing dendritic agate set in a hand stamped frame setting. The dendritic agate's  nickname is called a, "snow opal". The pendant itself is approximately 1 1/4 inches tall by 1  1/4 inches wide. It is on a 18 inch rolo chain. Other chain lengths are available upon request, just send a convo. I carry 16, 18 and 20 inch chains. This is a one of a kind piece.