Got A Rock you Want Identified? Post it here! gimme a good picture or 3 or 4!

magenta1

Jr. Member
Aug 20, 2013
33
58
East Coast
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mofugly13

Full Member
Jan 30, 2015
198
184
San Francisco, Ca
Primary Interest:
Prospecting
I found this and a few more in my yard I live in a valley I have trued biting with a torch a small piece and it gets soft but will not melt any ideas I can’t see it being anything worth while but u never know View attachment 1607886 View attachment 1607887 it will scratch has some weight to it very shiny chrome like when cut but can’t break heated up a peice the result was interesting the pic in the white pal was the after effect of heat can shape when its heated that s about it View attachment 1607888 View attachment 1607889
Looks like some spillover from exothermic welding of copper conductors. I make these welds all the time, and when a mold is not closed and the melt spills, this is what it looks like
 

mofugly13

Full Member
Jan 30, 2015
198
184
San Francisco, Ca
Primary Interest:
Prospecting
Picked this rock up from the gangue pile of the Yuba mine outside of Washington, Ca. I grabbed it because of the green stuff that is in it. It looks to be a few different minerals cemented together. The only one I know is the quartz. I'm interested in what the rectangular Crystal's are and especially what the green is. The green is relatively soft and is easily scraped by a knife, where it turns to powder. I'd love to know about this piece. 20180713_154916.jpeg 20180713_154927.jpeg 20180713_154936.jpeg 20180713_154943.jpeg 20180713_154954.jpeg 20180713_155006.jpeg 20180713_155050.jpeg
 

Xasan

Tenderfoot
Jul 12, 2018
7
0
Primary Interest:
All Treasure Hunting
Picked this rock up from the gangue pile of the Yuba mine outside of Washington, Ca. I grabbed it because of the green stuff that is in it. It looks to be a few different minerals cemented together. The only one I know is the quartz. I'm interested in what the rectangular Crystal's are and especially what the green is. The green is relatively soft and is easily scraped by a knife, where it turns to powder. I'd love to know about this piece. View attachment 1611614 View attachment 1611615 View attachment 1611616 View attachment 1611617 View attachment 1611618 View attachment 1611619 View attachment 1611620

The rock as a whole looks like a calcite (CaCO3). As for the green stuff, not sure it is due to weathering and if it is another mineral but rock looks like a calcite.
 

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

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
Hi, I wondered if someone kind person might be able to tell me what this is? I found it on a beach and whilst I suspect it's nothing special, I found it curious because of the way the two layers have been fused together. Kind regards and thanks. View attachment 1611437

Not sure, looks sedimentary. Perhaps quartzite and..?
 

Eu_citzen

Gold Member
Sep 19, 2006
6,484
2,111
Sweden
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White's V3, Minelab Explorer II & XP Deus.
Primary Interest:
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here's a rock I found in a river, if you could View attachment 1611462 identify it for me I would really appreciate it, thanks. It's about the size of a grapefruit.

I'd need to see a fresh surface - take a hammer to it and chip a corner. Then get me new pics.
 

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:
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Hi,
I bought this today at a local flea market neither I nor the Seller had any idea what it was?
Weight about 5 pounds, length about 10 inches
Looks like a phallic symbol!
Carved, old I have no idea?
Please don't think I'm trying to play a joke.
Help on this would be great?

It's possibly a sandstone.
 

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
Picked this rock up from the gangue pile of the Yuba mine outside of Washington, Ca. I grabbed it because of the green stuff that is in it. It looks to be a few different minerals cemented together. The only one I know is the quartz. I'm interested in what the rectangular Crystal's are and especially what the green is. The green is relatively soft and is easily scraped by a knife, where it turns to powder. I'd love to know about this piece. View attachment 1611614 View attachment 1611615 View attachment 1611616 View attachment 1611617 View attachment 1611618 View attachment 1611619 View attachment 1611620

What you are seeing as "rectangular" is actually cleavage. I'd try scratching that with a knife, to.
K feldspar will not be scratched, while Calcite will. Can't see enough details on the green stuff.
 

mike b

Sr. Member
Sep 21, 2012
454
2,161
STATEN ISLAND NY
🏆 Honorable Mentions:
1
Detector(s) used
ONLY MINELABS, and now one Detector Pro Underwater.
Primary Interest:
Beach & Shallow Water Hunting
IMG_1306 (1).JPG IMG_1307.JPG IMG_1308 (1).JPG
I took these pictures of a rock about a month ago. It was found in a river by my cousin about five years ago in Denver Colorado. It seems heavy but I had no way to weigh it. it has a rounded side and a flat side that gives the appearance of a ball of something soft that was thrown down and rounded up around the outside of itself. My cousin put this rock in a vise and tried to cut into it with a hacksaw, he put a cut into it about 3/4" long and 1/16" deep before the teeth of the saw ground off. ( That's about what I think should happen.) It seems to have flecks of something in it that you can see if you zoom in. Thanks
 

mofugly13

Full Member
Jan 30, 2015
198
184
San Francisco, Ca
Primary Interest:
Prospecting
When I get home I'll get a better pic. But it straight up looks like a darker green wasabi. Same texture visibly, very fine grained. Can scratch it with a fingernail.
 

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
View attachment 1611883 View attachment 1611884 View attachment 1611885
I took these pictures of a rock about a month ago. It was found in a river by my cousin about five years ago in Denver Colorado. It seems heavy but I had no way to weigh it. it has a rounded side and a flat side that gives the appearance of a ball of something soft that was thrown down and rounded up around the outside of itself. My cousin put this rock in a vise and tried to cut into it with a hacksaw, he put a cut into it about 3/4" long and 1/16" deep before the teeth of the saw ground off. ( That's about what I think should happen.) It seems to have flecks of something in it that you can see if you zoom in. Thanks

Diabase/basalt or some similar mafic rock.
 

amizengo

Jr. Member
Nov 14, 2014
33
46
Primary Interest:
All Treasure Hunting
ROCK

We have found this mountain with these rocks.
what is it?
 

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