I also was going for Golem on 2 dens, with Mossrock/Turquoise and Stone/Prism my results were 2 Forest, 3 Mossrock, 3 Stone and 1 20hr which is either Mossrock or Golem, but amazed I got 3 super rare in a row!
iF you have another Stone dragon try using that, that is how I got my Mossrock and Turquoise by just breeding 2 Stone together with 6 possibilities Forest, Light, Stone, Golem, Mossrock and Turquoise