Firstly Agates are a very large group of minerals composed mainly of silica.  The Agates that we have are from the northwestern part of the USA and pretty much unique to the area.  There is also Moss agate that looks like there is tiny moss sprays inside the colorful agate. 
 
This unusual Agate offers inclusions of dendrites.  Another Oregon favorite agate!  I feel the dendrites offer personal growth in a way that is fluid and life giving.  Trees and branches!  Place other Earth energy stones onto this slab and allow the energy to cleanse them perfectly!  Size is 5 x 4.5 inches.