This is exactly what i make money by collecting QUARTZ ROCKS LOADED WITH GOLD and recover gold in it, this types of rocks are available around the world. thanks for watching..
Chapters:
00:00 INTRO Identifying quartz rock close up to magnifying glass.
00:29 Gold extraction process, Burning, Smashing, screening, Panning, roasting, digest to HNO3
10:00 Aqua regia process and filtration process.
12:47 Precipitation process with sodium meta bisulfite.
15:31 Cleaning process, cleaning precipitated gold powder.
17:05 melting gold powder and taking into scale.