Polka dot agate
This type of agate ( although it is also called jasper, for me is too much translucent for being a jasper ),has been found near Madras, and now is still mined at Richardson Ranch in Oregon.
The round spots ( orbicular) are of various colors: brown, yellow, red in a white or grey background; scenic patterns results when there are undulating brown and yellow hills, roads etc. with a white sky where the dots are like sun.
Size: 43.5x30.2x5.4 mm.
Weight: 57.51 ct.