What rock, mineral or metal is this?

BlackM00N

Tenderfoot
Mar 31, 2015
5
1
Primary Interest:
All Treasure Hunting
Hi,

found this while metal detecting on a hill. Got a strong non ferrous signal so magnets do not attract it. It's moderate heavy... a bit heavier than a rock tho. It breaks like a rock (if hammered) and there were many pieces where i found it, bit bigger and smaller than this one.

I would greatly appreciate any tips. I have better res pictures if need.

BM


DSC_0208_1280x851.JPG DSC_0209_1280x851.JPG DSC_0210_1280x851.JPG DSC_0211_1280x851.JPG DSC_0212_1280x851.JPG DSC_0213_1280x851.JPG View attachment 1139533 DSC_0215_1280x851.JPG
 

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BlackM00N

Tenderfoot
Mar 31, 2015
5
1
Primary Interest:
All Treasure Hunting
Ty for your answer BurntBear. I thought Galenit at first too but the material is not formed in cubic system and it leaves no marks at all on paper... it rather scratches it like a metal. Tho, color matches Galenit... a shiny metalic gray.

BM
 

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Eu_citzen

Gold Member
Sep 19, 2006
6,484
2,111
Sweden
Detector(s) used
White's V3, Minelab Explorer II & XP Deus.
Primary Interest:
Prospecting
Rub a piece against a unglazed piece of porcelain, what colour do you get?
Can you scratch it with a knife?
 

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BlackM00N

Tenderfoot
Mar 31, 2015
5
1
Primary Interest:
All Treasure Hunting
i cannot scratch it with a knife, it leaves no mark. On a tile on the other hand, it leaves a dark trail behind. Only on unglazed ones. It is not Magnetite tho... magnets do not stick to it.

BM
 

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Eu_citzen

Gold Member
Sep 19, 2006
6,484
2,111
Sweden
Detector(s) used
White's V3, Minelab Explorer II & XP Deus.
Primary Interest:
Prospecting
Yes, but what colour is the trail it leaves? Black, grey...?
 

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Mitch Dickson

Jr. Member
Mar 23, 2013
65
68
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Try a neodynum 52 and see if you get a slight magnetic reaction. Certain things are paramagnetic only and will not react to a regular magnet. If it is paramagnetic, rinse it off real good and drop it in a clear glass and pour some house hold hydrogen peroxide over it and see if small bubbles come off. If so streak a test stone and hit it with a drop of platinum test acid. If it turns white, do the Snoopy dance and go get some more :)
 

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DDancer

Bronze Member
Mar 25, 2014
2,339
2,002
Traveling US to work
Detector(s) used
Current Equinox 600
Past Whites DFX Garret GTI 2500 and others
Prospecting Minelab GPZ 7000
Past SD 2100 GP 3000 (retired)
Primary Interest:
All Treasure Hunting
Appears to volcanic in origin and from the description very high in silicate. As to what metalics may be in it to give it a non-ferrous resonse its possible that there is a lot of carbon in the mixture. Almost looks like obsidian or an obsidian like material. Some closer views of the face's may help.
 

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BlackM00N

Tenderfoot
Mar 31, 2015
5
1
Primary Interest:
All Treasure Hunting
hello,

i was traveling the last week so my answer comes late. sorry for that.
@Eu citzen The trail it leaves is grey, and looks like the line is made of tiny particles.

@ Mitch Dickson i have a big neodymium magnet (190kg pull force) and it does not attract the piece at all. As for the other suggested tests i don't have platinum test acid and truth be spoken i have no idea where to get some.

@DDancer Since my md strongly reacted to it... i think it is some sort of metal or metal ore...

BM
 

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605dano

Full Member
Nov 25, 2012
191
171
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Looks a lot like arsenopyrite we find around here. Does it have a garlic smell when hit with hammer?
 

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kingsjack123

Newbie
Apr 13, 2015
2
0
Primary Interest:
All Treasure Hunting
it may be a naturally made alloy from a volcanic environment,has a lot of bubble looking bumps and marks might be from a gaseous response from either a naturalalloying from volcanic heat or a hillbilly who was experimenting with alloys---} thats what id be doing:)
 

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