http://b4hntuy3fimfh2227vf4f74emnya7p35i5brtqujs6leqvtclfwvjbqd.onion/doc/physics/diamonds-crookes/The%20Project%20Gutenberg%20eBook%20of%20Diamonds,%20by%20William%20Crookes..html
I remarked that
the prospect was rather a poor one, but he
told me that a fortnight before he picked
out one worth £300, “and that,” he said,
“will pay for several weeks’ wages of my
boys.” This is the kind of speculative
gambling that goes on at the river diggings.
The miner may toil fruitlessly for months,
and then come across a pocket of stones,
where they have been swept by some eddy,
by which he will net several thousands.