Dendritic Agate 10mmIt is a very special gemstone which has a translucent texture and is found in a variety of colors like, brown, black, grey, red, and even clear. They form when water rich in manganese and iron flows along fractures between layers of limestone and other rock types, depositing dendritic crystals to make Dendrite Agate. Dendritic Agate gets its name from the black inclusions in this gemstone called dendrites. This is the Greek word for tree like. People