🔎 UNIDENTIFIED I can't find out what it is

danielisa2368

Greenie
May 29, 2017
16
22
arizona
Detector(s) used
Minelab 705 gold
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All Treasure Hunting
I found this rock in Arizona and can't find out what it is, it measures about 1 inch high x 2 inches wide x 21/2 inches long and weights just a little over 2 pounds. Its not magnetic and my Minlab equinox 600 will not detect it. Any help would be appreciated, thanks.
 

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Solution
Then it’s a rock with no metal in it
A geologist could tell you what kind of rock if that’s what you want to know

Then it’s a rock with no metal in it
A geologist could tell you what kind of rock if that’s what you want to know
I did a density test and it was 9.2. I have surched the internet and haven't seen any rock density that high. I will have to find a geologist to look at it. Thanks

Peyton Manning

Gold Member
Dec 19, 2012
13,886
16,298
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MXT-PRO
Sandshark
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Then it’s a rock with no metal in it
A geologist could tell you what kind of rock if that’s what you want to know
 
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danielisa2368

Greenie
May 29, 2017
16
22
arizona
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Minelab 705 gold
Primary Interest:
All Treasure Hunting
  • Thread Starter
  • Thread starter
  • #3
Then it’s a rock with no metal in it
A geologist could tell you what kind of rock if that’s what you want to know

Then it’s a rock with no metal in it
A geologist could tell you what kind of rock if that’s what you want to know
I did a density test and it was 9.2. I have surched the internet and haven't seen any rock density that high. I will have to find a geologist to look at it. Thanks
 
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Solution

grasshopper

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Aug 13, 2007
1,642
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Upstate NY
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If you don't get any responses here, may want to consider posting here:

 
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mdc002

Full Member
Jun 25, 2022
133
173
West Coast
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Fisher F2, Fisher F44
Primary Interest:
Metal Detecting
I found this rock in Arizona and can't find out what it is, it measures about 1 inch high x 2 inches wide x 21/2 inches long and weights just a little over 2 pounds. Its not magnetic and my Minlab equinox 600 will not detect it. Any help would be appreciated, thanks.
Volcanic rock with quartz?
 
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Ohiogoldfever

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Oct 15, 2020
512
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Dayton Ohio
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My guess is you have a nearly solid chunk of mineral. Looks like Arsenopyrite with some malachite staining, possibly looks spidery due to weathering away of other minerals.

I’m a total novice but it feels relatively plausible.
 
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Red-Coat

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Dec 23, 2019
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I did a density test and it was 9.2. I have surched the internet and haven't seen any rock density that high. I will have to find a geologist to look at it. Thanks

"Density" requires the units to be specified. If you mean "specific gravity" (which does not require units to be specified) and you have measured it correctly, there are no rocks as such with an SG as high as that. It would have to be an ore-bearing rock with a significant amount of native metal.

That narrows down the possibilities a lot. Among the common native metals, only silver (10.5), lead (11.3), mercury (13.6), gold (19.3), tungsten (19.5), and platinum (21.4) or admixtures of them could push the SG of their host rock up to that level.
 
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danielisa2368

Greenie
May 29, 2017
16
22
arizona
Detector(s) used
Minelab 705 gold
Primary Interest:
All Treasure Hunting
  • Thread Starter
  • Thread starter
  • #11
"Density" requires the units to be specified. If you mean "specific gravity" (which does not require units to be specified) and you have measured it correctly, there are no rocks as such with an SG as high as that. It would have to be an ore-bearing rock with a significant amount of native metal.

That narrows down the possibilities a lot. Among the common native metals, only silver (10.5), lead (11.3), mercury (13.6), gold (19.3), tungsten (19.5), and platinum (21.4) or admixtures of them could push the SG of their host rock up to that level.
My bad, I meant specific gravity. Sorry everyone... So wouldn't a metal detector detect it? It doesn't.
 
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GoldieLocks

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Dec 28, 2019
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Nevada
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it looks like air dry clay dried into volcanic rock that may have been sanded down into a triangle shape. Maybe it was suppose to be the base of an artist's sculpture.
 
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danielisa2368

Greenie
May 29, 2017
16
22
arizona
Detector(s) used
Minelab 705 gold
Primary Interest:
All Treasure Hunting
  • Thread Starter
  • Thread starter
  • #13
it looks like air dry clay dried into volcanic rock that may have been sanded down into a triangle shape. Maybe it was suppose to be the base of an artist's sculpture.
I doubt that it was at the base of Herq
it looks like air dry clay dried into volcanic rock that may have been sanded down into a triangle shape. Maybe it was suppose to be the base of an artist's sculpture.
I doubt it i found it at the base of the Harquahala mountain. I searched all around for hours and didn't find anything like it. Guys at the Rock and mineral show in Wickenburg Arizona couldn't figure out what it was either.
 
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Back-of-the-boat

Gold Member
Apr 18, 2013
6,289
7,259
California
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AT GOLD/Garrett /C.Scope cs4PI/Garrett(carrot) pro pointer/ 5x8 double d coil and sniper coil/Lesche digger/Lesche "T" handle shovel.
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First thing that came to my mind was some kind of breccia.
 
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