b4utoo Posted February 7, 2022 Share Posted February 7, 2022 The black "metal" sand you get when dragging a magnet in the dirt. Anyone know the content? And could you use it as a powder substitute for damascus. Or use it to make a billet. Yes, I know you could do anything, but has anyone actually tried it? Curious on the results. I guess magnetite for canister damascus could be the better question Quote Link to comment Share on other sites More sharing options...
FatBadger Posted February 7, 2022 Share Posted February 7, 2022 Are you talking about Canister Damascus or geology minerals? Smelting.. Quote Link to comment Share on other sites More sharing options...
George N. M. Posted February 7, 2022 Share Posted February 7, 2022 Magnetite (black sand) is Fe3O4, an iron oxide. While it is a good ore to smelt iron from it would not work to forge or weld with steel or elemental iron. So, no, you couldn't use it as a substitute for powdered steel in canister damascus. GNM (recovering geologist) "By hammer and hand all arts do stand" Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 7, 2022 Share Posted February 7, 2022 Perhaps "dormant geologist" might be a useful term.... Quote Link to comment Share on other sites More sharing options...
arkie Posted February 7, 2022 Share Posted February 7, 2022 Or...."fossilized geologist". Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 7, 2022 Share Posted February 7, 2022 I once had a lab instructor characterize me as a Vagrant Benthonic when I was late for a lab in the basement level of Old Main and so walked in the open window instead of hiking around to the front entrance and going up the stairs and then down the stairs and meandering through the halls to get to the lab room. As I had been interviewing as a cause of lateness and showed up in my "interview clothes", I was merely laughed at. Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 12, 2022 Share Posted February 12, 2022 Isn't magnetic sand a good indicator of gold in some placers? Quote Link to comment Share on other sites More sharing options...
JHCC Posted February 12, 2022 Share Posted February 12, 2022 On 2/6/2022 at 8:03 PM, George N. M. said: Magnetite (black sand) is Fe3O4, an iron oxide. This is chemically the same as the scale that flakes off your workpiece as you forge. It should not be confused with Fe2O3 (hematite), which is the major component of rust. On 2/7/2022 at 11:16 AM, ThomasPowers said: I once had a lab instructor characterize me as a Vagrant Benthonic I suppose that my work ethic and wildly varying focus would make me a Glacial Erratic. Quote Link to comment Share on other sites More sharing options...
Anachronist58 Posted February 12, 2022 Share Posted February 12, 2022 13 minutes ago, Nodebt said: gold Yes, it is, as it indicates deposition of the heavier minerals... JHCC, that would make you a stand alone stone? Robert Taylor Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 12, 2022 Share Posted February 12, 2022 Right on, Robert. I just made a friend that offered to take me panning in the Uwharries. I haven't tried it in a long time and am really looking fwd to it. I understand the first gold found in the US was in NC. Somebody correct me if I'm wrong. Quote Link to comment Share on other sites More sharing options...
George N. M. Posted February 13, 2022 Share Posted February 13, 2022 There was enough gold production that the US Mint operated a branch mint at Charlotte, NC to strike gold coins from 1837-1861. Gold was discovered in NC by a 12 year old boy in 1799 who found a 17 pound nugget while fishing. "By hammer and hand all arts do stand." Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 13, 2022 Share Posted February 13, 2022 I did some reading on that. The nugget served as a door stop for 3 years! They also found a 28 lb. nugget. "Today, the Reed Gold Mine is a National Historic Landmark and listed on the National Register of Historic Places. The site is managed by the North Carolina Department of Natural and Cultural Resources, which offers guided tours of restored underground tunnels that date back to the 1830s. A reconstructed stamp mill — a machine that crushes ore to extract metal from rock — is demonstrated daily. The stamp mill technology dates back to the 1890s" Interesting Day Trip! Quote Link to comment Share on other sites More sharing options...
TWISTEDWILLOW Posted February 13, 2022 Share Posted February 13, 2022 Take pictures when you go! Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 13, 2022 Share Posted February 13, 2022 I will. I'm also taking a box of donuts, maybe they will let me at the controls of the stamping mill for a photo! Quote Link to comment Share on other sites More sharing options...
Frosty Posted February 13, 2022 Share Posted February 13, 2022 Deb and I will have to put it on our lit of places to visit when we get that far down the road. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 14, 2022 Share Posted February 14, 2022 If you swing by for a look-see, there is plenty of room for RV parking here at the new place.... Do you bring Baxter & Ronnie on roadtrops? I think Gina would love to meet them. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 14, 2022 Share Posted February 14, 2022 That Stamp Mills technology maybe. De Re Metallica has multiple examples of stamp mills being use in the 1500's! (At least they were not using the "patio process" to extract silver as the Spanish did in the Andes.) Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 14, 2022 Share Posted February 14, 2022 I'm going to order it. I looked it over on google read or whatever its called. I skipped the intro and preface, electronic screens are bothering my eyes lately. Looks engrossing, actually. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 14, 2022 Share Posted February 14, 2022 Not much writing and TONS of woodcuts of the mining and refining technology of the day---also the first known use of ghosting in drafting, (Unless an earlier one has been found since I checked.) Look at who did the Translation! (And keep your eyes open for the dog----seems like whenever the person doing the woodcuts ran a bit shy of material he stuck the dog in somewhere in the background...) Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 14, 2022 Share Posted February 14, 2022 Will do. I found this at the used book store: $85 usd cover price, I paid 2 bucks for it.... I think I may be looking a while for De Re Metallica in my usual haunts though... Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 14, 2022 Share Posted February 14, 2022 Dover put out an edition of DRM with translation by the Hoovers; so it should be fairly cheap and easy to find. But doesn't seem to be when I check my usual places... Quote Link to comment Share on other sites More sharing options...
George N. M. Posted February 14, 2022 Share Posted February 14, 2022 De Re Metallica is a very cool book. Martha and I (both geologists) wanted to get in our time machine and go back and meet the Hoovers. We tend to think of Herbert Hoover as a somewhat ineffectual President who presided over the early Depression and looks bad compared to FDR. But he had a long history as a successful administrator and mining engineer. He ran the relief efforts that saved many people in Europe during and after WW1. His wife, Lou, was really interesting too. She was the first woman to graduate from Stanford with geology degree. They were in China during the Boxer Rebellion in 1900 and during the siege of Tensien Lou was riding her bicycle around for relief efforts through Chinese artillery fire. Martha and I always thought that they were "our kind" of people. "By hammer and hand all arts do stand." Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 14, 2022 Share Posted February 14, 2022 I particularly like the elevator---it has two waterwheels conjoined with the buckets oriented in opposite directions. The operator directs a moveable flume to either wind the rope up or unwind it down to move items up or down into the mine. Also the inventiveness of the water pumping systems. Quote Link to comment Share on other sites More sharing options...
Frosty Posted February 14, 2022 Share Posted February 14, 2022 13 hours ago, Nodebt said: If you swing by for a look-see, there is plenty of room for RV parking here at the new place.... Do you bring Baxter & Ronnie on roadtrops? I think Gina would love to meet them. Oh yeah, they'll be with us. Deb's more likely to leave me home. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Scott NC Posted February 15, 2022 Share Posted February 15, 2022 You come down here and you can help me build my shop. I'll put you in charge and my nephews can do all the work. I'll have Stubb's BBQ cater until we can't stand it anymore... The coffee's always on.... Quote Link to comment Share on other sites More sharing options...
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