there are two kind of gems first the kappa gems which is found in the winter mine in levels B0,B40,B60,B80,B120,B140,B160,B180, and B225 the second the goddes gem which is found in the spring mine in levels B60,B102,B123,B152,B155,B171,B190,B202,B222
bunos: in my game experience you can dig one power berry in the winter mine and two power berry in the spring mine.