jedijackie Posted June 20, 2018 Share Posted June 20, 2018 Hi everyone! I found a interesting rock with metallic luster here at home in Texas. I think it might be a mineral rock but I have know clue as to what type of mineral, Thankfully we have sites like this one for rookies like me that don’t have a clue about rocks and fossils. I have posted pics of the rock and would love to know what everyone else thinks about what mineral type it could be, thanks y’all! Link to comment Share on other sites More sharing options...
ynot Posted June 20, 2018 Share Posted June 20, 2018 Hematite is most likely. Can You do a streak test? (rub it on unglazed porcelain and note the color of the mark.) Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted June 21, 2018 Share Posted June 21, 2018 Are their bubbles in the piece or are those natural holes? If those are bubbles in the piece then it is not naturally formed; melted with human help. How hard in the rock? How dense? Is it malleable? My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
jedijackie Posted June 21, 2018 Author Share Posted June 21, 2018 1 hour ago, ynot said: Hematite is most likely. Can You do a streak test? (rub it on unglazed porcelain and note the color of the mark.) Yes I conducted a streak test I’ve never had to do one until now so I hope I did it right. I’ll post the picture of the result Link to comment Share on other sites More sharing options...
ynot Posted June 21, 2018 Share Posted June 21, 2018 From the color of the streak, and what @DPS Ammonite said about the holes, I think it is a piece of aluminum from a campfire (maybe). Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
jedijackie Posted June 21, 2018 Author Share Posted June 21, 2018 2 hours ago, DPS Ammonite said: Are their bubbles in the piece or are those natural holes? If those are bubbles in the piece then it is not naturally formed; melted with human help. How hard in the rock? How dense? Is it malleable? It’s very soft and it’s heavy, yes it has a few holes in fact The bigger hole is on the tip but most of the whole is covered with what looks like to me as tiny crystals. I’ve posted a pic to show you what I mean Link to comment Share on other sites More sharing options...
caldigger Posted June 21, 2018 Share Posted June 21, 2018 Lead? Maybe someone was making bullets or melted it for whatever reason. Link to comment Share on other sites More sharing options...
jedijackie Posted June 21, 2018 Author Share Posted June 21, 2018 Did a scratch test with a copper penny ...pic results are posted for y’all to see Link to comment Share on other sites More sharing options...
jedijackie Posted June 21, 2018 Author Share Posted June 21, 2018 I found another one except this one is shaped differently Link to comment Share on other sites More sharing options...
ynot Posted June 21, 2018 Share Posted June 21, 2018 10 hours ago, jedijackie said: It’s very soft and it’s heavy, yes it has a few holes in fact The bigger hole is on the tip but most of the whole is covered with what looks like to me as tiny crystals. Soft and heavy fits with lead. Can not see what "crystals" you are referring too because the fingers are in focus but the area with the hole is not. Can You post a picture with the area in focus? I can see bits of sand/rock stuck to the second piece. This fits with a lead melt also. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
sTamprockcoin Posted June 22, 2018 Share Posted June 22, 2018 Put an edge into a propane torch flame if it melts easily its most likely some kind of lead. A local scrap metal recycling yard will tell you what it is. It may have some recycling value. “Beautiful is what we see. More beautiful is what we understand. Most beautiful is what we do not comprehend.” N. Steno Link to comment Share on other sites More sharing options...
DPS Ammonite Posted June 22, 2018 Share Posted June 22, 2018 On 6/21/2018 at 6:14 AM, jedijackie said: I found another one except this one is shaped differently Definitely a humanite. My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted June 22, 2018 Share Posted June 22, 2018 On 6/21/2018 at 1:01 AM, jedijackie said: Did a scratch test with a copper penny ...pic results are posted for y’all to see I hope that penney was not a 1909S VDB or a 1922 plain! My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
caldigger Posted June 23, 2018 Share Posted June 23, 2018 Ya, I'm not sure using a pristine wheat penny is the best thing to use for the scartch test. It tends to make numismatist's cringe. Answer me this. You said it was very soft and yet it scratches copper. By soft are you referring to it being malleable or what? Link to comment Share on other sites More sharing options...
jedijackie Posted June 23, 2018 Author Share Posted June 23, 2018 2 hours ago, caldigger said: Ya, I'm not sure using a pristine wheat penny is the best thing to use for the scartch test. It tends to make numerologist's cringe. Answer me this. You said it was very soft and yet it scratches copper. By soft are you referring to it being malleable or what? Yes... if I were to get a hammer it will probably flatten Link to comment Share on other sites More sharing options...
caldigger Posted June 23, 2018 Share Posted June 23, 2018 Thinking the part that scratched the penny may have been some of those embedded sand grains. I still feel it's lead. Have you tried the melt test as of yet? Link to comment Share on other sites More sharing options...
ynot Posted June 23, 2018 Share Posted June 23, 2018 7 hours ago, jedijackie said: Yes... if I were to get a hammer it will probably flatten Gold and lead are the only minerals that fit Your descriptions (except scratching penny) and this is not gold--- so it must be lead. Lead does not appear like this in nature. Must be a "humanite" type of lead. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
jedijackie Posted June 25, 2018 Author Share Posted June 25, 2018 I put a torch on it and it took about a minute for it to start melting. This is what it looked like after it cooled Link to comment Share on other sites More sharing options...
ynot Posted June 25, 2018 Share Posted June 25, 2018 Lead. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
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