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Finds Identification and Valuation
Blob of what the?????
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<blockquote data-quote="Guessologist" data-source="post: 479814" data-attributes="member: 11952"><p>Was it in an historic mining area? I'll eat my hard hat if that isn't antimony metal. Definitely a smelter product of some sort. Check out "antimony regulus" or star metal on google image search for some comparisons. I frequent a site that's got quite a lot of it, makes an awesome noise! The magnetism could be a bit of a red herring for ID, I'm going to guess that there's some blobs of iron in there giving it magnetic properties.</p><p></p><p>The photo of the inside's a bit hard to see but that perhaps may be stibnite in the middle of the lump.</p><p></p><p>Cobalt might be unlikely? I understand it's a fair bit of work to separate cobalt from the other metals it occurs with, doesn't seem like the kind of thing to just discard when you've put a lot of work in it. And that's a fair chunk!</p><p></p><p>edit: just tested with a couple of my found lumps of antimony, some are pretty magnetic, some aren't at all. Got to be some iron contamination here, no nickel or cobalt around and I know they quarried ironstone nearby to use as smelter flux.</p></blockquote><p></p>
[QUOTE="Guessologist, post: 479814, member: 11952"] Was it in an historic mining area? I'll eat my hard hat if that isn't antimony metal. Definitely a smelter product of some sort. Check out "antimony regulus" or star metal on google image search for some comparisons. I frequent a site that's got quite a lot of it, makes an awesome noise! The magnetism could be a bit of a red herring for ID, I'm going to guess that there's some blobs of iron in there giving it magnetic properties. The photo of the inside's a bit hard to see but that perhaps may be stibnite in the middle of the lump. Cobalt might be unlikely? I understand it's a fair bit of work to separate cobalt from the other metals it occurs with, doesn't seem like the kind of thing to just discard when you've put a lot of work in it. And that's a fair chunk! edit: just tested with a couple of my found lumps of antimony, some are pretty magnetic, some aren't at all. Got to be some iron contamination here, no nickel or cobalt around and I know they quarried ironstone nearby to use as smelter flux. [/QUOTE]
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Blob of what the?????
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