15 replies to this topic

[unfindable]

This is a very strange story but it go's as follow. I was walking in my  Neighbourhood and saw a garden full of rocks and was curious if the owner would part with some of them. And after putting a note in the mailbox i got  a phone call that the owner would let go of some of the stones. And i said i would take a look.

 

Most of the stones where not very interesting but after some digging in the pile of rocks i suddenly felt something very heavy and it turned out to be a flaky iron rock and i thought this could be interesting. The owner said i could have the stones for nothing because he was going to trow them away anyway. This stone has been found by the owner in an old gravel pit where the delve for sand with suction pipes.

 

location is the bisonbaai in the ooiij polder close to Kekerdom.

 

Love to hear your opinions about this one.

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Edited by unfindable, 18 June 2024 - 10:14 AM.

[unfindable]

it is magnetic and very old and has old sand or quartz grains stuck to it. here are some closeups

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Edited by unfindable, 18 June 2024 - 10:16 AM.

[jimr2]

Can't say for sure, but it may be an iron-concretion of some sort--like hematite. Look those up on the Web and see what you think.

 

-jim-

(a retired geologist)

[unfindable]

Can't say for sure, but it may be an iron-concretion of some sort--like hematite. Look those up on the Web and see what you think.

 

-jim-

(a retired geologist)

it's seems to feel all iron and ways to heavy to be hematite or iron concretion. 973 grams and measures 11 x 6 x 3,5 cm widest points. I have put it in the oven to dehydrate and after an hour it is still hot. And i have to correct myself because the stone does contain some sand grains after looking with a 10x loup.See link for comparison: https://meteorite-re.../2003/jun03.htm

Edited by unfindable, 17 June 2024 - 03:46 PM.

[jimr2]

OK, that was my best guess (but iron concretions of hematite or magnetite can be quite heavy (i.e., have high specific gravity)). Again, good luck. I do hope it does turn out to be a meteor-right, and not a meteor-wrong, for you!

 

-jim-

[unfindable]

it is surprisingly quiet

[unfindable]

Oke this is getting interesting. i filed a window and is has patches of iron in another matrix. Possible mesosiderite? here are foto's of the cleaned stone and the window.

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[leonardovaller]

Oke this is getting interesting. i filed a window and is has patches of iron in another matrix. Possible mesosiderite? here are foto's of the cleaned stone and the window.

That one looks good. Exterior looks good, shape looks good. It reminds me Canyon Diablo meteorites.

If you just find it, it does not mean it's a meteorite.

Tests must be done.

Edited by leonardovaller, 19 June 2024 - 01:38 PM.

[unfindable]

That one looks good. Exterior looks good, shape looks good. It reminds me Canyon Diablo meteorites.

If you just find it, it does not mean it's a meteorite.

Tests must be done.

Yes i am going to let the fragments test for nickel. And by the way i didn't find it, but rediscovered it in the garden of the original finder. And tommorow i am going to take a look at the cut window. But what i can see with the 10x loup is that if it is a meteorite it is a stony iron and not an iron meteorite because it has patches of metal in a matrix and is not made of solid iron.

[leonardovaller]

Yes i am going to let the fragments test for nickel. And by the way i didn't find it, but rediscovered it in the garden of the original finder. And tommorow i am going to take a look at the cut window. But what i can see with the 10x loup is that if it is a meteorite it is a stony iron and not an iron meteorite because it has patches of metal in a matrix and is not made of solid iron.

Well no being solid metal are bad news. But it certainly seemed that way. That is why photo identifications are not reliable.

[unfindable]

Well no being solid metal are bad news. But it certainly seemed that way. That is why photo identifications are not reliable.

what do you mean?. it can still be a meteorite but than a stony iron. or is that so rare that it would be out of the question? And the photos are just fine because as you said it looks like a canyon diablo. The grind window  looks like these: https://www.mindat.org/gl/27778

Edited by unfindable, 20 June 2024 - 02:42 AM.

[unfindable]

Well no being solid metal are bad news. But it certainly seemed that way. That is why photo identifications are not reliable.

well i finally got a good photo of the grind window. Please tell me what you think.

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[leonardovaller]

well i finally got a good photo of the grind window. Please tell me what you think.

It'd be okay to suspect meteoritic origin if it were iron. It looks a lot like Canyon Diablo meteorites.

But since its not iron, then it hardly will turn out to be a meteorite because no other meteorite types look like this.

You know what other rock looks like this? Hematite. Highly weathered hematite.

They can be mistaken in photos but not in person.
 

[unfindable]

It'd be okay to suspect meteoritic origin if it were iron. It looks a lot like Canyon Diablo meteorites.

But since its not iron, then it hardly will turn out to be a meteorite because no other meteorite types look like this.

You know what other rock looks like this? Hematite. Highly weathered hematite.

They can be mistaken in photos but not in person.
 

I thought what the heck i wil clean it and then i will know more. It turnes out to be solid iron after all. here is the cleaned object.

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[leonardovaller]

I thought what the heck i wil clean it and then i will know more. It turnes out to be solid iron after all. here is the cleaned object.

I don't think that's iron or iron/nickel. That shiny, rough and porous texture reminds me of ferromanganese or some similar alloy. I would not recommend doing the acid test since we don't know what kind of reaction could be generated with a metal whose composition we are not sure of. We don't want toxic gases or dangerous reactions of any kind. My final opinion after seeing the interior is that it is not a meteorite.

[unfindable]

I don't think that's iron or iron/nickel. That shiny, rough and porous texture reminds me of ferromanganese or some similar alloy. I would not recommend doing the acid test since we don't know what kind of reaction could be generated with a metal whose composition we are not sure of. We don't want toxic gases or dangerous reactions of any kind. My final opinion after seeing the interior is that it is not a meteorite.

i agree totaly