Found: geode ore, gnomish chest, Wisterium Tree, Gnomish Mine
It's so random isn't it. I find the gold drops ok for me, but the fireflies were non existent in a heap I chopped and then I did another big chop fest and got quite a few. I have the 2 gem items listed in 'found' and they do help. Slow and steady is the way unless you spend millions at a time. I might still do that...
Fingers crossed the next batch of ore you chop will be better for you.