Geologist Paul Posted November 4, 2018 Share Posted November 4, 2018 Hi All, I want to make (or have somebody make) a ring out of a type of meteorite called pallasite (see link below). I would provide the meteorite. https://en.wikipedia.org/wiki/Pallasite The ring should be a thin, uncomplicated affair like this. Does anybody know who could do such a thing? Presumably you would just saw out the olivine and send it away to a lapidary to cut the stones and then just melt down the metal parts of the meteorite and cast into a ring. Thanks for any help or contacts, Paul Quote Link to comment Share on other sites More sharing options...
SLAG Posted November 4, 2018 Share Posted November 4, 2018 Mr. G. Paul, I presume that you wish to extract the peridot crystals from your particular meteorite specimen to make the ring. (if any peridot crystals would suffice, you could purchase same on the market). Mineral acids such as hydrochloric and sulfuric acid will attack the iron and nickel in the matrix, and eat it away. That is one of the ways that is used to extract the peridot crystals. Indeed, pallasite, and other meteorite specimens, are etched in order to enhance, the fantastic Widmanstetten patterns seen in those specimens. I seem to recall that such treatment was mentioned to free peridot crystals from meteorite specimens. I saw/heard it on a television show that featured the adventures of two meteorite hunters. The show was screened for about three seasons. (The series ended about six years ago.) Some i.f.I. member may help supply the name of that series. Hope that helps, SLAG. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted November 4, 2018 Share Posted November 4, 2018 Casting of course destroys the widmanstatten patterns and leaves a ring that will rust on your finger and may cause issues for people with nickel sensitivity. You should at least expect to line it with silver or gold. I know people with such skills but it would be EXTREMELY expensive and I don't even know if you are in the same continent as they are! Geologist Thomas Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted November 4, 2018 Share Posted November 4, 2018 That's why I always suggest this thread. https://www.iforgeiron.com/topic/53873-read-this-first/ Quote Link to comment Share on other sites More sharing options...
Geologist Paul Posted November 7, 2018 Author Share Posted November 7, 2018 Thanks for the answers SLAG and Thomas, My clever nuclear chemist wife immediately pointed out the oxidation problem, but wonders why the Widmanstetten patterns do not oxidize naturally. Anyway, that is off-topic. I do not have a pallasite specimen, I was thinking of purchasing one, sawing out the olivine and using the metallic matrix for the ring. Now I see that is not the way to go as it appears most meteorite rings are not cast. I think I will go the easy route and just purchase the olivines from here http://www.kdmeteorites.com/2mmCalibratedMeteoritePeridot.html And getting these people to make the ring. https://jewelrybyjohan.com/collections/meteorite-rings Thanks again for the help, Geologist Paul out Quote Link to comment Share on other sites More sharing options...
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