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Campo del Cielo 249 grams

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24 replies to this topic

#1 leonardovaller

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Posted 16 December 2023 - 02:25 AM

Love its shape

 

IMG_20231215_153432.jpg

IMG_20231215_153452_1.jpg

IMG_20231215_184443.jpg

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#2 Jethro7

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Posted 16 December 2023 - 05:07 AM

Hello,
I like these Campo's awesome meteorites.

HAPPY SKIES TO YOU AND KEEP LOOKING UP Jethro
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#3 B 26354

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Posted 16 December 2023 - 01:09 PM

I feel exactly the same about my little 23.3g Henbury:

 

Henbury Meteorite - C-N.jpg

 

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#4 Paul Hyndman

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Posted 16 December 2023 - 02:26 PM

Love its shape

Very nice!

 

My 1.8kg Campo simply looks like an overcooked  baked potato.

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#5 Glassthrower

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Posted 16 December 2023 - 02:35 PM

That's a really nice example of a small Campo. You don't see them like that too often any more. 


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#6 leonardovaller

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Posted 16 December 2023 - 05:47 PM

Very nice!

 

My 1.8kg Campo simply looks like an overcooked  baked potato.

Nice.

Are those black stains rust or graphite?



#7 Jethro7

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Posted 16 December 2023 - 07:05 PM

Hello Cners,
Here is my favorite Campo, any way Im 99% sure its a campo. It was being used as a door stop when I found and bought it. It weighs in at 7.031Kgs. It looks a little neglected and  needs a clean up.

 

HAPPY SKIES AND KEEP LOOKING UP Jethro

 

20231216 175312

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#8 bigdob24

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Posted 16 December 2023 - 09:39 PM

Here’s one I acquired recently 

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#9 leonardovaller

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Posted 17 December 2023 - 12:41 AM

Here’s one I acquired recently 

Nice.

And nice arrow heads collection too.



#10 lee14

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Posted 17 December 2023 - 06:40 AM

Nice.

Are those black stains rust or graphite?

If the black color is not merely a photographic artifact, the material is most likely silicates mixed in with the nickel-iron. This is quite common in Campos, but the silicates are usually more isolated and discrete. If it has a 'grainy' texture, is hard but not tough, silicated material is the answer.

 

Lee


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#11 Paul Hyndman

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Posted 17 December 2023 - 03:26 PM

Nice.

Are those black stains rust or graphite?

Oops, gotta' get out the WD40... that's rust! blush.gif


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#12 lee14

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Posted 17 December 2023 - 05:27 PM

Oops, gotta' get out the WD40... that's rust! blush.gif

No, it's not. It's silicated material. Look at the two ground faces and the common edge. The black material and clear metal compose the matrix that extends deep into the interior. Rust is limited to the surface on this Campo, as is generally the case.

Lee


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#13 leonardovaller

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Posted 17 December 2023 - 05:49 PM

If the black color is not merely a photographic artifact, the material is most likely silicates mixed in with the nickel-iron. This is quite common in Campos, but the silicates are usually more isolated and discrete. If it has a 'grainy' texture, is hard but not tough, silicated material is the answer.

 

Lee

Could it be the same case with this Canyon Diablo I got and polished?
 
Canyon Diablo 261122b.jpg

 


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#14 lee14

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Posted 17 December 2023 - 06:59 PM

 

Could it be the same case with this Canyon Diablo I got and polished?

 

In a Canyon Diablo those are more likely to be graphite, or even troilite. Silicated material is not typically found in CD's.

 

Lee


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#15 Paul Hyndman

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Posted 17 December 2023 - 09:31 PM

Here’s one I acquired recently 

Ahhh, someone else with a love for arrowheads/artifacts!

 

A few of mine:

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#16 Paul Hyndman

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Posted 17 December 2023 - 11:41 PM

If the black color is not merely a photographic artifact, the material is most likely silicates mixed in with the nickel-iron. This is quite common in Campos, but the silicates are usually more isolated and discrete. If it has a 'grainy' texture, is hard but not tough, silicated material is the answer.

 

Lee

 

No, it's not. It's silicated material. Look at the two ground faces and the common edge. The black material and clear metal compose the matrix that extends deep into the interior. Rust is limited to the surface on this Campo, as is generally the case.

Lee

I only have a few meteorite samples and have a lot to learn... thanks for the info, Lee.
 


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#17 lee14

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Posted 18 December 2023 - 04:23 AM

Ahhh, someone else with a love for arrowheads/artifacts!

 

A few of mine:

Nice points collection!

 

Lee



#18 bigdob24

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Posted 18 December 2023 - 09:24 AM

Here’s a few more

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#19 bigdob24

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Posted 18 December 2023 - 06:00 PM

Jethto7

My Campo started showing a little bit of rust, I did some checking around and decided on a Automatic Transmission Fluid bath.

Found a container that the Campo just fit and covered it in very warm ATF and let it soak awhile, places that showed rust got a careful soft bristle brushing “tooth brush” then let it drip dry and whipped with a soft cloth and back on display.


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#20 leonardovaller

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Posted 21 January 2024 - 09:43 PM

Here’s a few more

Hey, may I send you a private message? Maybe you could help me with this african arrowhead I got from a french dealer. Thank you.



#21 scottinash

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Posted 26 January 2024 - 10:51 PM

I have been recently going through my collection which has been stored away for several years.  Here's my Campo.  550g Polished End cut

 

 

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#22 leonardovaller

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Posted 27 January 2024 - 12:03 AM

I have been recently going through my collection which has been stored away for several years.  Here's my Campo.  550g Polished End cut

Such a beautiful specimen. Do you plan to etch it or leave it as is?


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#23 scottinash

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Posted 27 January 2024 - 08:33 AM

Such a beautiful specimen. Do you plan to etch it or leave it as is?

I have had it for probably sixteen years or so and had not given much to consideration to etching until you just suggested.  Hmmmmm  hmm.gif



#24 lee14

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Posted 27 January 2024 - 08:50 AM

If the specimen is as blemish-free as the pictures appear, it was properly stablished prior to polishing. I would leave it as it is. Whether polished or etched, when properly prepared (i.e. terrestrial chlorides have been removed, by either chemical or electrolytic means), the finished surfaces may need their protection renewed. For etched surfaces, G-96 brand gun oil is highly recommended (though some are advocates of transmission fluid). Preventing oxidation on a polished face is best accomplished by a metal polish containing rust inhibitors, such as Flitz.

 

Whatever you're doing or not doing, the results speak for themselves, it's a beautiful specimen!

 

There is of course the option of etching only a single face and leaving the remaining polished surfaces as they are. Personally though, I'd leave it as is; 'if it ain't broke, don't fix it'.

 

Nice piece, thanks for sharing!

 

Lee


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#25 scottinash

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Posted 27 January 2024 - 10:55 PM

If the specimen is as blemish-free as the pictures appear, it was properly stablished prior to polishing. I would leave it as it is. Whether polished or etched, when properly prepared (i.e. terrestrial chlorides have been removed, by either chemical or electrolytic means), the finished surfaces may need their protection renewed. For etched surfaces, G-96 brand gun oil is highly recommended (though some are advocates of transmission fluid). Preventing oxidation on a polished face is best accomplished by a metal polish containing rust inhibitors, such as Flitz.

 

Whatever you're doing or not doing, the results speak for themselves, it's a beautiful specimen!

 

There is of course the option of etching only a single face and leaving the remaining polished surfaces as they are. Personally though, I'd leave it as is; 'if it ain't broke, don't fix it'.

 

Nice piece, thanks for sharing!

 

Lee

Thanks, Lee.  Reasonable advice which I think I'll follow.  Plus, I already have a few other etched specimens in my collection.


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