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Post by 1dave on Nov 6, 2014 16:04:37 GMT -5
I got an emergency phone call from one of my grand daughters.
She had bought a ring made out of a meteorite for her husband BUT it was rusting on his finger. WHAT TO DO? The only suggestion I could come up with was to take it to a gun smith and have it blued.
Any better ideas?
Thanks, Dave
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Post by snowmom on Nov 6, 2014 18:16:18 GMT -5
brilliant idea!
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Deleted
Deleted Member
Member since January 1970
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Post by Deleted on Nov 6, 2014 20:10:58 GMT -5
Blueing is really in itself a form of rust. This will NOT stop rust. When I Cerakoted guns for a living; cops brought me their backup guns (usually carried on skin) that would rust within months of a new blue.
From wikipedia
The solution for guns was Cerakote. The metal is sealed and no longer visible. Not a good option for meteorite ring.
It is my humble opinion he will need to repolish and then clear coat. Or rub with silicon grease frequently.
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gemfeller
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Member since June 2011
Posts: 3,786
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Post by gemfeller on Nov 6, 2014 20:44:06 GMT -5
Many iron meteorite rings are designed with rust prevention in mind. They're often made from Gibeon material that's been acid-treated to reveal Widmanstatten patterns. A strip of meteorite material is nested in a channel around the circumference of a ring blank made from gold or silver, the only part that touches the skin. The meteorite iron is then heavily clear-coated to prevent moisture from reaching it. The clear coating probably has to be renewed occasionally, just like rhodium plating on some white gold jewelry.
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RocknCritter
spending too much on rocks
Member since November 2008
Posts: 489
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Post by RocknCritter on Nov 7, 2014 9:57:40 GMT -5
I have a meteorite pendant that got wet at a gem show this summer and there is one spot with a little rust. Below is what my supplier recommended.
Remove the rust with CLR (Calcium-Lime-Rust remover). Then use 90% rubbing alcohol to remove all traces of the CLR. This is a very critical step. Any CLR left will turn the meteorite yellow. So repeat several times. If you need to re-etch the piece, leave it in PCB Etchant/Ferric Chloride - available from Radio Shack. (He didn't mention the length of time.) Spray with Deft wood finish to protect the meteorite.
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Post by pghram on Nov 7, 2014 10:53:18 GMT -5
What about some type of wax intended for jewlery? After it's been cleaned, of course.
Rich
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Post by 1dave on Nov 7, 2014 12:36:48 GMT -5
Thanks ! I knew I would get great info from this group. In my detective reading I found some use Armor All to prevent finger prints on guns. Anyone tried it for rust?
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Post by Pat on Nov 7, 2014 12:54:35 GMT -5
I use EverBrite. Looks like water, but seals whatever. Totally transparent. everbrite.com I used the formula for copper. Different formulas for different metals.
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Post by Pat on Nov 7, 2014 13:39:42 GMT -5
I met a dealer at a street fair whose copper jewelry looked wonderfully clean and shiny. While deciding which pair of earrings to buy, I found out he uses PermaLac.
There are many different formulas for it.
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Post by Rockoonz on Nov 7, 2014 22:37:21 GMT -5
ArmorAll is mostly silicon oil, which is not a rust inhibitor.
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panamark
fully equipped rock polisher
Member since September 2012
Posts: 1,343
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Post by panamark on Nov 8, 2014 0:03:55 GMT -5
ArmorAll is mostly silicon oil, which is not a rust inhibitor. I think Lee is correct in that silicone is not good at stopping rust. As I understand it though, silicone has excellent "penetration" and is quite adhesive to raw metal while being extremely repulsive to water. So on a raw/non-rusty metal it will act to prevent rust by not letting the water molecules get to the metal. Because silicone is so penetrating and essentially flows all over the place, I don't recommend on guns. It gets into places you don't want oil, especially wood.
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Post by vegasjames on Nov 8, 2014 0:32:35 GMT -5
It is going to depend on what the meteorite is. Some are notorious rusters and once the process starts nothing will stop it. Research "lawrencite disease" to see what I am talking about.
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Post by Rockoonz on Nov 8, 2014 23:08:39 GMT -5
ArmorAll is mostly silicon oil, which is not a rust inhibitor. I think Lee is correct in that silicone is not good at stopping rust. As I understand it though, silicone has excellent "penetration" and is quite adhesive to raw metal while being extremely repulsive to water. So on a raw/non-rusty metal it will act to prevent rust by not letting the water molecules get to the metal. Because silicone is so penetrating and essentially flows all over the place, I don't recommend on guns. It gets into places you don't want oil, especially wood. Not so sure about that, I believe ArmorAll is an aquaeous emulsion, which means isopropyl alcohol or some other agent that will mix with both has been added to allow them to mix. In other words, ArmorAll has water in it.
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panamark
fully equipped rock polisher
Member since September 2012
Posts: 1,343
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Post by panamark on Nov 9, 2014 11:03:21 GMT -5
I think Lee is correct in that silicone is not good at stopping rust. As I understand it though, silicone has excellent "penetration" and is quite adhesive to raw metal while being extremely repulsive to water. So on a raw/non-rusty metal it will act to prevent rust by not letting the water molecules get to the metal. Because silicone is so penetrating and essentially flows all over the place, I don't recommend on guns. It gets into places you don't want oil, especially wood. Not so sure about that, I believe ArmorAll is an aquaeous emulsion, which means isopropyl alcohol or some other agent that will mix with both has been added to allow them to mix. In other words, ArmorAll has water in it. Yes. I was only speaking about silicon oil. I don't think ArmorAll was ever meant to be be a rust preventor.
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Post by vegasjames on Nov 10, 2014 20:30:11 GMT -5
Try researching here or post your question here: meteoritejunction.com/I know the topic of rust prevention has come up a number of times in the past.
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jamesp
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Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 11, 2014 6:29:49 GMT -5
a strong hot buffing on an industrial pad has good results on slowing rust
if you get iron super hot on such a pad it slows rust, like a molecular rearrangement.
maybe a high temp wax could be buffed on
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Post by vegasjames on Nov 12, 2014 6:35:19 GMT -5
a strong hot buffing on an industrial pad has good results on slowing rust if you get iron super hot on such a pad it slows rust, like a molecular rearrangement. maybe a high temp wax could be buffed on Heating iron meteorites is not a good idea. High heat alters their crystal structure. Even when cutting or grinding iron meteorites you need to prevent them from getting excessively hot.
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jamesp
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Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 12, 2014 9:15:29 GMT -5
a strong hot buffing on an industrial pad has good results on slowing rust if you get iron super hot on such a pad it slows rust, like a molecular rearrangement. maybe a high temp wax could be buffed on Heating iron meteorites is not a good idea. High heat alters their crystal structure. Even when cutting or grinding iron meteorites you need to prevent them from getting excessively hot. Come on James, just a little 300-400F on the surface. I had no idea they are that sensitive. Super hot may not be a good description. But a good firm buffing does have effects on slowing rust. Certainly there is a higher temp buffing compound of the wax or urethane family that would leave a rust proof coating. What do you think ? Heated powder coating does wonders.
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Post by gingerkid on Nov 12, 2014 18:40:02 GMT -5
1dave, what kind of meteorite is the ring made of? Did your son-in-law's finger turn red when he wears the ring? I wondered if he may be having an allergic reaction to nickle? I read an article that mentioned the Muonionalusta meteorites are sometimes sold as Gibeon. How do you discern the difference between the two?
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gemfeller
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Member since June 2011
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Post by gemfeller on Nov 12, 2014 20:18:04 GMT -5
1dave, what kind of meteorite is the ring made of? Did your son-in-law's finger turn red when he wears the ring? I wondered if he may be having an allergic reaction to nickle? I read an article that mentioned the Muonionalusta meteorites are sometimes sold as Gibeon. How do you discern the difference between the two? Hi Jan, if it's the same article I read you check to see if it came from a Chinese jewelry supplier and set your stop-watch to see how fast it starts to rust LOL! Here's some info on stopping rust. Vegas James may have better/more specific info but check this out: www.meteorites.com.au/odds&ends/ironrust.html
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