Lysite Agate also goes by the name of Wyoming Blizzard Stone. Lysite is found on Lysite Mountain in Wyoming. It is formed in a layer of silica rich volcanic ash, and often features quite a bit of variety. Lysite Agate often has lace like banding, and cuts some pretty sweet cabochons! It is a pretty hard one to find this day and age! Measurements(inches - largest - approx): 5.3 x 2.9 x .25 The last photo has been taken dry so that you may see any defects. The other photos have been taken wet to simulate a polish.