By rob baum
i've been looking all around for a target id chart for raw metals for my x-terra 705. all i've been able to find is ones listing coins and when i try to look up what material the coins are to cross reference them, they all seem to be made primarily of copper. if anyone have suggestions what these might be or another target id chart out there i would appreciate it.
Detected an old ranch that was built in 1926 with my X-Terra 70. I chose the 6"-3kHz coil as it was VERY trashy. My first good signal was a very strong high tone in all directions with the VID #s up in the silver dollar range in the front yard. A large chunk of heavy metal comes out of the hole. I thought it was a chunk of lead, although it was oddly colored for lead, and it rang up higher than lead on the X-Terra. In the pouch it went. My next good target was a 1943-s "War Nickel", then another chunk of heavy metal. Didn't hunt long but I have permission to go back. After I got home I gave the heavy metal chunks a little cleaning and realized that they weren't lead after all.
The two chunks after a rinse off.
The larger one just didn't look like old lead and is a dark grey-blue color and is not soft like lead. I dipped it in a liquid metal cleaner and, wow! It came out a nice bright silver color! It turned back to it's original color as it air dried (should have rinsed it off). I took it to the garage to the buffing wheel and briefly hit the edge of it...
Buffed up nicely. Weighs 2.70 ounces. Appears to be a silver pour.
The second chunk looks more like a slag/first pour than the first one and is mostly copper mixed with what appears to be silver and possibly some gold...
Weighs .50 ounce.
This ranch is just down the road from what was once a bustling copper mining town and is now a ghost town. The mine has recently been re-claimed and the town/mine area is now closed to the public. I'm guessing that the people who lived at the ranch may have worked at the mine and brought these pours home?
Ok guys, i am in need of more input. i own fors and gmt amd vsat. i havent had chance to use 705 yet. i have very little time on any given machine as well.
terrain- small gold, med to high hot rocks, b.i.f.,
Trying to narrow down primary candidate.
Could golden hawk b in running?
Dad has gb 2 its not going anywhere soon.
By Steve Herschbach
I was doing some Googling and tripped over this October 2006 article by Des Dunne. Des is an extremely knowledgeable detectorist who used to work with Minelab and had a key role to play in several models. Good stuff, print it out or copy to your computer before this external link disappears someday.
Minelab X-Terra 705 Gold metal detector