mystery silver rock 4 jewelers cannot ID

RayHeezy

Jr. Member
Mar 26, 2014
91
384
Southwest Florida
Detector(s) used
Ace 250
Primary Interest:
All Treasure Hunting
So first off let me apologize for the rough pics, I still use an old school phone :S

I use a Tracker II by Bounty Hunter, it is by no means an awesome detector but it does have minimum features such as Tone, Disc., and Sensitivity. So while messing around in my yard using Tone, I get a high pitch. This little mystery came out of about a 4" hole.
rock1.jpgrock2.jpgrock3.jpg

Now for the interesting part, I have taken it to 4 different gold/silver stores and had them do their own acid tests, and stare at it through the magnifying glass for 25 minutes just to tell me in a very puzzled way they have no idea what it is. 2 have said it is not a precious metal. I have gotten a few different possibilities but can rule out 2 right away.
Melted Aluminum - In pictures ive seen these are usually smooth in texture
Iron Pyrite - Iron would come up as a low tone on my tone mode, and iron wouldn't even sound on max disc. The rock however does high tone on both.

There was no discoloration to the dirt surrounding the rock. When using a metal file the rock is extremely shiny. The dust it creates is light grey/silver in color and shiny.
I will attempt to upload some better pictures tomorrow after work.
 

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