Dendritic agate is a special type of microcrystalline quartz (or chalcedony) that belongs to the agate mineral family, the same family to which banded agate, moss agate, and Montana agate belong. When we think of purchasing rings that have an organic, earthy appearance, the first option that comes to our mind is dendritic agate rings. Very few people know that the beautiful patterns on these stones are not made by plant fossils – instead, these dendritic patterns are made of manganese and iron inclusion. If you want to purchase a beautiful dendritic agate ring with a high-quality stone set in it, you need a basic understanding of the stone’s characteristics along with an eye for detail. You can check if your dendritic agate ring has a high-quality stone by examining the surface quality of the stone.