Victorian Collar Pin Dendrite Moss Agate Gold Filled. This late 1800s brooch weighs 2.7 grams and is set in gold filled metal. It measures 3/8 inches wide and 1.5 inches long. The moss or dendrite agate shows patterns of both brown and black fauna. The agate is domed and polished. It closes with an old C clasp. The closure mechanism is secure. This Dendritic Agate Pin is in very good condition. This estate collar pin can be worn by a man or a woman.