#1
|
|||
|
|||
Pseudometeorite
I have a piece of what appears to be a meteorite, but is not
extraterrestrial in origin. Is this the correct term? From an observed fall in the Powers, Oregon area before 1976. Said to contain large concentration of platinum. My piece is only perhaps 1 inch across. My ex-brother-in-law has another piece about the size of a pencil eraser. Daniel B. Wheeler |
#2
|
|||
|
|||
Pseudometeorite
On Dec 26, 6:34*am, wrote:
I have a piece of what appears to be a meteorite, but is not extraterrestrial in origin. Is this the correct term? From an observed fall in the Powers, Oregon area before 1976. Said to contain large concentration of platinum. My piece is only perhaps 1 inch across. My ex-brother-in-law has another piece about the size of a pencil eraser. Daniel B. Wheeler It needs to be sent to a meteoritical lab for testing. See Norton's "Rocks from space" for a list of labs. |
#3
|
|||
|
|||
Pseudometeorite
On Dec 26, 6:55 pm, Johnny Borborigmi wrote:
On Dec 26, 6:34 am, wrote: I have a piece of what appears to be a meteorite, but is not extraterrestrial in origin. Is this the correct term? From an observed fall in the Powers, Oregon area before 1976. Said to contain large concentration of platinum. My piece is only perhaps 1 inch across. My ex-brother-in-law has another piece about the size of a pencil eraser. Daniel B. Wheeler It needs to be sent to a meteoritical lab for testing. See Norton's "Rocks from space" for a list of labs. I will be taking it with me to the Cascade Meteorite Laboratory after Jan. 1. But I don't have much hope for positive identification. Platinum is known from meteorites in very low concentrations (indeed, platinum is nearly 100% extraterrestrial) but not in this concentration. The presence of other metals suggeests it is a piece of returned space debris rather than an ancient piece of cosmic interest. Daniel B. Wheeler |
#5
|
|||
|
|||
Pseudometeorite
On Dec 27, 10:41*am, Chris L Peterson wrote:
On Sat, 27 Dec 2008 01:12:41 -0800 (PST), wrote: I will be taking it with me to the Cascade Meteorite Laboratory after Jan. 1. But I don't have much hope for positive identification. Platinum is known from meteorites in very low concentrations (indeed, platinum is nearly 100% extraterrestrial) but not in this concentration. The presence of other metals suggeests it is a piece of returned space debris rather than an ancient piece of cosmic interest. Is this object basically a piece of metal? If so, and it contains platinum, I'd agree it is very unlikely to be a meteorite. Metal meteorites are little more than iron and nickel. At best, you'd find platinum in (very) trace amounts in stony meteorites. So you could have a piece of space junk (there's a fair bit of it around), or simply something totally terrestrial with an unusual history. Do you have any details of the witnessed fall associated with the object? _________________________________________________ Chris L Peterson Cloudbait Observatoryhttp://www.cloudbait.com My guess, it's slag. |
#6
|
|||
|
|||
Pseudometeorite
On Mon, 29 Dec 2008 16:32:23 -0800 (PST), Johnny Borborigmi
wrote: My guess, it's slag. You don't usually have much platinum is slag. If this was associated with a witnessed fall, space junk is certainly a possibility. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
#7
|
|||
|
|||
Pseudometeorite
On Dec 27 2008, 7:41 am, Chris L Peterson
wrote: On Sat, 27 Dec 2008 01:12:41 -0800 (PST), wrote: I will be taking it with me to the Cascade Meteorite Laboratory after Jan. 1. But I don't have much hope for positive identification. Platinum is known from meteorites in very low concentrations (indeed, platinum is nearly 100% extraterrestrial) but not in this concentration. The presence of other metals suggeests it is a piece of returned space debris rather than an ancient piece of cosmic interest. Is this object basically a piece of metal? If so, and it contains platinum, I'd agree it is very unlikely to be a meteorite. Metal meteorites are little more than iron and nickel. At best, you'd find platinum in (very) trace amounts in stony meteorites. So you could have a piece of space junk (there's a fair bit of it around), or simply something totally terrestrial with an unusual history. Do you have any details of the witnessed fall associated with the object? _________________________________________________ Chris L Peterson Cloudbait Observatoryhttp://www.cloudbait.com I do, Chris. But I didn't want to post it until after I have a more accurate analysis of the piece. I obtained the sample on a trip to Powers, Oregon to visit my sister Susan Andrea Fox (since divorced and remarried). Her husband was leaving his job as a teacher in Powers, and I went to help move them. While there, I heard about a neighbor who claimed to have been nearby when a rock hit the earth nearby while deer hunting. I asked to see the stone. I remember my brother-in-law left the house for a few minutes, then beckoned me outside. I have forgotten the name of the neighbor but do remember the stone: an irregular semiglobose object with a jet-black exterior and pieces of what appeared to be either metal or metallic- colored swirls in it. The stone weighed at least 80 pounds (my ex- brother-in-law claims over 120 pounds). One area appeared to be silvery-colored, and at least one area over 1 inch across had a distinctive golden-cast to it. As I recall it, the stone was roughly 14inches high and perhaps 12 inches in circumference, and extremely heavy for the apparent size. It was roughly bullet-shaped or conical, with a semi-flattened surface on the side furthest away from the point. The neighbor told me he had found the stone while hunting deer the previous fall. He was on a foreted mountainside outside of Powers when he heard a trmendous fluttering sound, a thunderous impact, and breaking braches as well as the top of a small tree falling. After several minutes to recover from his shock, he traced a path of broken branches and located the rock embedded in shallow soil. He claimed there was a light snowfall at the time, and that "by the time I cleaned myself up" and reached the rock, there were flakes of unmelted snow on the rock. I was told an assay had been performed on the rock, and that it supposedly contained iron, copper, gold, platinum and silver. I asked for a small piece of the stone, then walked back into the house to help loading and packing. I was later told the rock was taken back to the nieghbor's nearby garage where it was struck repeadedly with an 8-lb. splitting maul used for splitting firewood. I would hear the hammering sounds for several minutes. After about 10-20 minutes, there was a knock at the door, and I was presented with a small case such as fishing hooks sometimes come, which had a shard from the reputed meteorite. The interior of the shard showed metallic granules or something similar to metal grains in them. The exterior was a thin reddish-black veneer-like surface, not really smooth, but roughly flattened/slightly rounded. I took the piece with me to a Meteor Shower Party in 1999 at Rooster Rock State Park (Leonids), and showed it to several astronomers present. No one was willing to say yea or nay to whether it actually was from a meteorite, and I could not find anyone who had actually seen a meteorite at the party. I contacted my ex-brother-in-law for any information he might be able to add. He stated he also had a small piece of the alledged meteorite, about the size of a pencil eraser, which included at least some visible platinum in it. He suggested that his neighbor of 1976 was already retired in 1976, and probably had since died. He had no idea what may have happened to the rock. He did state that the finder had tried to sell the stone to the Smithsonian Institution for $1 million based on the alleged platinum content in 1976, Nor did my sister when I emailed her. However, my ex-brother-in-law did state he thought the stone had been found near the wreckage of a 1950's or 60's Canadian Air Force plane. The plane wreckage site is apparently well-known in the Powers area. There is another unusual thing to my piece of the stone: it has 3 small (the largest is about 4mm across) areas/nuggets of white crystaline material embedded in the rock. The largest piece has a dull overall appearance, but when turned does have tiny shiny facets on parts of it. I cannot imagine what might have caused such material to be in the stone. Perhaps residue of ceramics? Sometime next week I will be taking it to the Cascade Meteorite Laboratory at Portland State University for closer study. Daniel B. Wheeler |
#8
|
|||
|
|||
Pseudometeorite
On Jan 1, 1:26 pm, wrote:
On Dec 27 2008, 7:41 am, Chris L Peterson wrote: [snip] Sometime next week I will be taking it to the Cascade Meteorite Laboratory at Portland State University for closer study. DanielB.Wheeler Still haven't gotten it to Cascade Meteorite Laboratory. Weather has fouled travel much of anywhere after Dec. 20: first heavy snowfall, followed by 6-18 inches of rainfall (depending on where in the state you are) resulting in massive flooding and landslides. Supposedly another 100-year-storm last witnessed in 1997, but global warming apparently has some interesting weather in store for us. Did have a chance yesterday to look for a different 4000 pound meteorite, but didn't locate it. Narrowed the search area down to about 180 acres, only to find that about 70 acres are now involved in a 4-lane freeway plus access construction. Did see (1/4 mile away) a stone that might be it at the extreme edge of the range mentioned, but couldn't manage a closer look. Will try again next week. Daniel B. Wheeler |
Thread Tools | |
Display Modes | |
|
|