Prospectors would blame the ranchers then ranchers blame gold prospectors. This went on for several years, now people are getting arrested and thrown in jail. Most being arrested this year probably never started a fire.
Like anywhere else gold probably varies from one location to the next. Garret used gold from Don's area in Brazil once for a magazine ad. Then Don helped a new Garrett dealer in Brazil get things set up at a ranch for Garrett to make a video. Garrett canceled out last moment because security...
I think Brazil gold is good yellow. The moment Don saw what he had, sat down and could not stand up for a while. Enough gold to make a person faint or pass out. It might be a photo before a better cleaning up.
Nugget cache here found by the first person to own a Minelab detector in Brazil. After becoming the first Minelab distributor in Brazil, hunting nuggets for many years. He found the cache using his old discriminating detector.
According to video Axiom bas not only VCO audio but a high-low tone mode. Interesting because my old 1990s Garrett detector had the same high-low mode. It was very useful because the low would kick in to identify large iron targets.
I'm thinking the factory preset on Garrett GTA 1000 for threshold was silent in standard audio mode you could adjust. Why headphones turned either up or down as needed while adjusting threshold. My best results were with a slight background threshold sound (very faint).
My old Garret GTA 1000 from the 1990s had threshold adjust. On standard tone (without fancy beep tones) upped threshold while decreasing headphone volume, gave a little more depth on deeper smaller targets. Old machines nothing compared to what we have now.