14 replies to this topic

[unfindable]

Hello everyone, i have bought a african stone statue which is made of a hard greenish stone which looks allot like DaG 476. My thought was most meteorites are found in africa and the african carvers go into the dessert to find suitable stones for carving and pay no attention to the possibility that it could be a weathered meteorite. Here one photo of the statue and one photo of DaG 476. Pay attention to the matrix not the crystals. What is your opinion

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[leonardovaller]

Before giving my opinion, what do you think this could be?

 

I know what it is. I just want you to tell me what do you think.

 

A crusted mars meteorite?

 

[mmcc]

Before giving my opinion, what do you think this could be?

 

I know what it is. I just want you to tell me what do you think.

 

A crusted mars meteorite?

 

Clipboard.jpg

Looks like dunite dipped in poop to me, but I learned geology in the 80s…

[leonardovaller]

Looks like dunite dipped in poop to me, but I learned geology in the 80s…

Olivine bomb, dunite, xenolith, peridotite, etc.

Some people with vague knowledge of meteorites believe they are fusion-crusted meteorites.

[mmcc]

Oh cool, a dunite bomb, I just googled that, never knew till now that there was such a thing. Sort of a meteorite I guess, it probably fell out of the sky, briefly.

[leonardovaller]

Oh cool, a dunite bomb, I just googled that, never knew till now that there was such a thing. Sort of a meteorite I guess, it probably fell out of the sky, briefly.

Nope. Those are nor meteorites.

They are igneous earth rocks.

[mmcc]

Nope. Those are nor meteorites.

They are igneous earth rocks.

Thanks, yah I know, that was kind of a joke, that in getting coated in basalt and spat out of a volcano that piece of dunite might have flown briefly, was my point. Most emphatically not a meteorite.

 

Dunite incidentally named after Dun Mountain, right here in New Zealand.

 

Sorry OP way, way off topic now.

[unfindable]

Before giving my opinion, what do you think this could be?

 

I know what it is. I just want you to tell me what do you think.

 

A crusted mars meteorite?

 

Clipboard.jpg

that is an vulcanic olivine bomb.

[unfindable]

1st: I never said it was a meteorite but that it looked like a mars meteorite according the matrix.

2th: read the tekst carfully and think about the possibillity although small

3th: the matrix from both stone do match pretty well

[unfindable]

my sincere apologies for my behavior, it turned again like always to be nothing. I wil quit with meteorites and am done with it. So i wil not post anymore. cheers.

[lee14]

my sincere apologies for my behavior, it turned again like always to be nothing. I wil quit with meteorites and am done with it. So i wil not post anymore. cheers.

No one here faults your enthusiasm, we're all interested in the subject or we wouldn't be here. You just need to refine your expectations. The fact that the candidates you proposed did not turn out to be meteorites is not a criticism, it has statistical significance of its own; i.e. meteorites are more rare than your initial hypothesis. Negative results are as significant as confirmations.

 

I see two choices if you're interested in continuing to search for the real article. Searching known strewn fields is the best option, although it may not be practical depending on your location or ability to travel.

 

The other is perhaps not as satisfying, but comes with an almost certain chance of success; micrometeorites. These are sub-millimeter sized specimens commonly collected from water running off of roofs, or from roofs more directly. Interestingly enough, by weight, more meteoritic material falls as this dust, then as collectable 'macro' specimens. Without going into detail, you can check this out further by googling Jon Larsen and/or Project Stardust.

 

Lee

Edited by lee14, 12 February 2024 - 08:15 AM.

[unfindable]

No one here faults your enthusiasm, we're all interested in the subject or we wouldn't be here. You just need to refine your expectations. The fact that the candidates you proposed did not turn out to be meteorites is not a criticism, it has statistical significance of its own; i.e. meteorites are more rare than your initial hypothesis. Negative results are as significant as confirmations.

 

I see two choices if you're interested in continuing to search for the real article. Searching known strewn fields is the best option, although it may not be practical depending on your location or ability to travel.

 

The other is perhaps not as satisfying, but comes with an almost certain chance of success; micrometeorites. These are sub-millimeter sized specimens commonly collected from water running off of roofs, or from roofs more directly. Interestingly enough, by weight, more meteoritic material falls as this dust, then as collectable 'macro' specimens. Without going into detail, you can check this out further by googling Jon Larsen and/or Project Stardust.

 

Lee

thank you lee, at least i am entertaining. hunting i strewnfields is out of the question for two reasons 1 they are alomst hunted out and two the traveling and transporting the meteorites will cost too much. What micro meteorite are considered it is not easy because alot of industrial wast dust looks also like micro meteorites and to find one micro meteorite you have to spend oures climing roof tops . But my only opyion is to scour the dunes in the forrest that we have here and there are defently no stones there only sand, so if you come across a dark rock there who knows. Thanks for the interest everyone and maybe some day i will post something to post about.

[lee14]

 

hunting i strewnfields is out of the question for two reasons 1 they are alomst hunted out and two the traveling and transporting the meteorites will cost too much. What micro meteorite are considered it is not easy because alot of industrial wast dust looks also like micro meteorites and to find one micro meteorite you have to spend oures climing roof tops .

Just a couple of thoughts.

 

Known strewn fields certainly have fewer specimens left than they once had, but many are not entirely cleaned out. The Muonionalusta field (also in forested land) is still yielding material; a good bit of work is required to dig out new pieces, but they're undoubtedly still there. Gold Basin specimens are still being recovered in the US. Northwest Africa brings new material to light almost daily. I quite understand that places like these are inaccessible for you, but pragmatically they remain the most likely places to recover material.

 

Micrometeorites are quite common, and are more readily found than one might think. Actually climbing roofs is unnecessary, water borne material can be collected from gutters or even downspouts. You're correct about the industrial waste issue, even iron spherules can be found in runoff material. The odds though, are quite good at recovering the 'real thing'.

 

Again, I recommend you take a look at Jon Larsen's work. This is his Facebook page, but there are other sites with information about what he does.  

 

https://www.facebook.com/jonlarsenhome

 

Lee

[moefuzz]

thank you lee, at least i am entertaining. hunting i strewnfields is out of the question for two reasons 1 they are alomst hunted out and two the traveling and transporting the meteorites will cost too much. What micro meteorite are considered it is not easy because alot of industrial wast dust looks also like micro meteorites and to find one micro meteorite you have to spend oures climing roof tops . But my only opyion is to scour the dunes in the forrest that we have here and there are defently no stones there only sand, so if you come across a dark rock there who knows. Thanks for the interest everyone and maybe some day i will post something to post about.

picking up rocks from the garden center rockpile and spamming the forums doesn't make for great entertainment but it is indeed  laughable

[lee14]

picking up rocks from the garden center rockpile and spamming the forums doesn't make for great entertainment but it is indeed  laughable

Don't mistake unrestrained enthusiasm for spam or trolling. Unfindable has a genuine interest in the subject, his only faults are an incomplete understanding of the scientific method and diagnostic processes. Yes, finding images of earth rocks on a forum dedicated to meteorites can be tiresome, but it is also educational both for the OP and the readers. 

 

Most importantly though, when the facts are pointed out, or when unfindable sought outside sources that confirm terrestrial origins for his specimens, he unfailingly accepts the judgements. This is not always the case for those that are so emotionally invested in their 'find' that they reject valid evidence to the contrary.

 

Lee

Edited by lee14, 13 February 2024 - 06:32 AM.