daffy Posted February 20, 2019 Share Posted February 20, 2019 Found this on the property im living on probably a meteor wrong but thought id ask anyway. Shiny black crust on outside. Slightly magnetic. Quite heavy 1 Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 20, 2019 Share Posted February 20, 2019 (edited) That looks very promising, Daffy. Can you file the exposed interior area shown in your first photo and then sand it smooth to see if any bright, silvery nickel iron flecks are visible? They should look similar to the pic below...perhaps not as many flecks, since your sample is only slightly attracted to a magnet: Edited February 20, 2019 by Lunk Quote Link to comment Share on other sites More sharing options...
Morlock Posted February 20, 2019 Share Posted February 20, 2019 Just the shape makes me think it's not a meteorite. Quote Link to comment Share on other sites More sharing options...
daffy Posted February 20, 2019 Author Share Posted February 20, 2019 Will file it smooth today and take some pics in the sunlight 1 Quote Link to comment Share on other sites More sharing options...
daffy Posted February 20, 2019 Author Share Posted February 20, 2019 Kind of the shape of a boomerang or moon lol 1 Quote Link to comment Share on other sites More sharing options...
Bedrock Bob Posted February 20, 2019 Share Posted February 20, 2019 You surely found something odd there. Lunk is giving you some good info. You need to get a good look at the inside of that rascal. This is one of the few on this forum that is not easily identified as a terrestrial stone. That dimple on the back of the stone in the last photo looks like it has a bit of a lip on it. You can see a definite boundary in the "crust" around that low spot. That is exactly where a lip would form. The interior looks good to me too. The crust looks good and is the appropriate thickness and texture. I see several features that could be meteoritic. It surely warrants further investigation. I hope you see some metal in it when you get a flat spot polished on it. Quote Link to comment Share on other sites More sharing options...
Rocky Posted February 21, 2019 Share Posted February 21, 2019 (edited) I think a quick streak test is warranted for this one. Flip the lid of your toilet tank over exposing the unglazed ceramic surface of the lid. Scratch one part of the black portion of the stone with the black portion directly against the unglazed portion about 4-5 swipes lightly and report the color of the streak left behind or share a photo of the streak. This is a good candidate for this test! Edited February 21, 2019 by Rocky Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 Its only very slightly magnetic. Had the magnet dangling with string and it slowly pulled towards it. I can see some very tiny flakes of metal In it now i have filed more off. Ridiculously hard to take a decent picture though with my crappy phone. But tried my best Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 The area that I filed had a bit chipped off it when I found it so just continued it. It is on the rounded bit in the middle Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 Very light coloured streak. White to very light grey. Will take a pic when phone charges up Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 Streak test Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 21, 2019 Share Posted February 21, 2019 (edited) 2 hours ago, daffy said: I can see some very tiny flakes of metal In it now i have filed more off. The presence of metal flakes is a real good sign, although I can't make them out in your photos. The filed window reveals an interior that is composed of coarse, angular mineral grains, with no chondrules, suggestive of an achondrite. Before proceeding to the next step, which would be to email some clear, high quality photos to an accredited meteorite lab to see if they would be interested in examining your find, can you give us any specifics on the environment and circumstances in which your specimen was found...was it in a desert region? If so, are there any desert varnished rocks in the area? What made this particular rock stand out to you as being different from the surroundings? Was it found with a metal detector, or did you spot it visually? Edited February 21, 2019 by Lunk Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 rural property. i was walking near the creek gold panning and looking at rocks, hadn't rained for months and that one stood out from the rest i walk the creek regularly looking at the rocks, this one was so shiny lol, just looked different to the rest i picked it up,. i still walk around looking for something similar, found one kind of similar very heavy for its size with the black crust same property different area if you want to see? been searching for meteorites for years if even one of them is legit ill be extremely happy lol Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 21, 2019 Share Posted February 21, 2019 (edited) Yes, please post pics of the other, similar stone and file a window on it when you get a chance. Edited February 21, 2019 by Lunk Quote Link to comment Share on other sites More sharing options...
daffy Posted February 21, 2019 Author Share Posted February 21, 2019 Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 21, 2019 Share Posted February 21, 2019 Okay Daffy, the second sample appears to have the same composition as the first one. At this point, I would go back to the area where these stones were found, collect a few of the native stones and break them open with a hammer to compare their interiors; please wear gloves and eye protection...you can cover them with a rag or towel before striking them to prevent the fragments from flying off. What we're trying to do here is rule out the possibility that your finds are simply native terrestrial rocks that have acquired a dark mineral coating. Isn't science fun?😄 2 Quote Link to comment Share on other sites More sharing options...
Mikestang Posted February 21, 2019 Share Posted February 21, 2019 (edited) If the exterior black were fusion crust I would expect it to be much more smooth; the black coating appears to have followed the roughness of the exterior of the stone as you would expect from an oxidation coating. Still curious rocks and certainly worth further investigation. What part of the country are you in? Maybe someone close by could take a look in person. Edited February 21, 2019 by Mikestang 3 Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 22, 2019 Share Posted February 22, 2019 (edited) 11 hours ago, Mikestang said: If the exterior black were fusion crust I would expect it to be much more smooth; the black coating appears to have followed the roughness of the exterior of the stone as you would expect from an oxidation coating. While that is generally true, there are always exceptions; for example, this 98% fusion crusted, 120 gram Tissint shergottite achondrite individual, which shows a remarkably rough and uneven surface: Edited February 22, 2019 by Lunk Quote Link to comment Share on other sites More sharing options...
daffy Posted February 23, 2019 Author Share Posted February 23, 2019 Nothing quite like them around especially with the black on the outside. I look for gold a lot so im always smashing up rocks lol mostly just sedimentary rocks and lot of quartz and a lot of iron ore. Little bit of gold lol. Wondering who i could show them to who could identify them? Thanks so much for the info and help btw. Quote Link to comment Share on other sites More sharing options...
Lunk Posted February 23, 2019 Share Posted February 23, 2019 (edited) Contact Information Daffy, you can email some photos and a link to this forum thread to: Alan E. Rubin aerubin@ucla.edu Institute of Geophysics and Planetary Physics University of California Los Angeles, CA 90095-1567 Telephone 310-825-3202 FAX 310-206-3051 Here's a link to his web page: http://cosmochemists.igpp.ucla.edu/Rubin.html Good luck, and please keep us updated here. Edited February 23, 2019 by Lunk Quote Link to comment Share on other sites More sharing options...
Rocky Posted February 23, 2019 Share Posted February 23, 2019 On 2/20/2019 at 11:18 PM, daffy said: Streak test Daffy did you streak test on the inside portion or the black portion? Quote Link to comment Share on other sites More sharing options...
daffy Posted February 24, 2019 Author Share Posted February 24, 2019 On the inside portion. Quote Link to comment Share on other sites More sharing options...
daffy Posted February 24, 2019 Author Share Posted February 24, 2019 Thanks so much will have to get batteries for the camera its so frustrating not being able to show exactly what im seeing lol Quote Link to comment Share on other sites More sharing options...
daffy Posted February 24, 2019 Author Share Posted February 24, 2019 Just streaked the black part a bunch of times. black as well with the grey Quote Link to comment Share on other sites More sharing options...
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