Talk:Native metal

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Listed metals[edit]

I appreciate that this article is a stub. It certainly needs expansion. However I am very surprised to see galleries.com naming such reactive metals as Aluminium, Lead, zinc, iron and tin as native metals. I appreciate that iron occurs in meterorites, but that is a special case. I certainly remember being told of native copper and gold, and am prepared to believe that similar metals such as silver, platinum and palladium can occur geologically as native metals, but I find the appearance of the rest in the list most surprising. Can some one enlighten further, perhaps by exapnding this article to indicate what metals do indeed routinely occur as natvie metals? Peterkingiron 11:21, 22 May 2007 (UTC)[reply]

They tend to occur in highly reducing environments. For example, aluminum has been documented in mud volcanoes, which are frequently associated with petroleum deposits. All of the reactive elements are extremely rare as native elements. For some odd reason most of them tend to occur in Russia. Search Mindat for locality information. Bear in mind that some of these metals (such as titanium) occur only as small inclusions in other minerals; there is even a variety of fluorite that (as a result of high background radiation) contains native fluorine. --Pyrochem (talk) 07:51, 4 February 2008 (UTC)[reply]

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non-oxygenated celestial bodies?[edit]

Earth before the Great Oxidation Event, as well as all the all the other bodies in our solar system without diatomic oxygen. The article talks about "Over geological time scales, very few metals can resist natural weathering processes like oxidation" but in some places that humans have explored far away never had an oxygen atmosphere, so this doesn't apply. How common are native metals in these places? 2603:8001:5B01:93E3:B1D:859F:F555:EACA (talk) 23:23, 30 June 2022 (UTC)[reply]

It depends on the place. There are places here on Earth where truly native-iron can be found, but it's extremely rare. Mercury, for example, appears to be one, big, metallic ball. Venus, on the other hand, has temps high enough to melt lead and clouds of sulfuric acid raining down on everything. Probes sent to Venus barely survived long enough to snap a few shots of the surface. To my knowledge, no metals native to Mars have been found, but all indications are that Mars once had a dense atmosphere and possibly highly-acidic oceans before it lost its magnetic field. There is a lot of metal swirling around in the asteroid belts, which is where a lot of meteoric-iron comes from. Not so much though when you get out to the gas giants and beyond. I mean, Jupiter has a core of metallic hydrogen, but that's not the same. Out beyond the planets it's more ice than anything else, which is where comets come from. It might be worth mentioning that nearly all metals, and especially anything heavier than iron, theoretically were created during a supernova, so it's in the vicinity of supernova remnants that one would expect to find the most metals. Zaereth (talk) 00:25, 1 July 2022 (UTC)[reply]