About two-thirds of our gold is obtained from the placers, and one-third from the quartz.
This is especially the case in those districts where the gold is found in placers.
Placers are forming now and have formed at all stages of the earth's history.
The deposits of Colombia and Australasia are placers of a similar character.
Being heavy and resistant to weathering, they are also concentrated in placers.
The proportion of diamonds now mined from placers is very small.
When eroded and transported the gems are concentrated in placers.
In that country the cream has already been skimmed off the “placers.”
In the ocean the pearl-banks, and on the land the placers of gold belonged to them.
How the gold came in the placers we may leave the pupil to suggest.