[meteorite-list] [IMCA List] Martin Goff's Out Reach
From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Mon, 24 Nov 2014 08:09:32 +0000 (UTC) Message-ID: <584395110.103876.1416816572311.JavaMail.yahoo_at_jws106124.mail.bf1.yahoo.com> Good Morning Michael, Thanks for taking the time to compose your excellent explanation. It gives not only newcomers to the meteorite market, but all of us, a better appreciation of the perils of pairing (not to mention self-pairing). With best regards, Bob V. > On Sunday, November 23, 2014 8:51 PM, Galactic Stone & Ironworks via Meteorite-list <meteorite-list at meteoritecentral.com> wrote: > > Hi Robert! > > I am glad to have this conversation, because I think it can shed some > light on the issues of provenance and authenticity for newcomers who > do not yet understand how the meteorite market works. > > First, I want to emphasize for motive for asking the question was not > to show-up or start a feud of any kind with the IMCA. > > My motive was defend the honest non-members of the meteorite dealing > world who are implicated every time a statement is made that suggests > IMCA-sourced meteorites are more reliable than non-IMCA meteorites. > > In fact, I do sincerely wish the IMCA success because they are the > only game in town when it comes policing the meteorite market - the > market is surely better for their efforts and I would not put my past > personal issues with them over the integrity of the market as a whole. > So to the IMCA I say - rock on. > > About authenticity : > > I chose NWA 869 as an example not because it is easily self-paired, > which it is. You are correct in stating that the vast majority of > instances when NWA 869 is offered, it is indeed NWA 869. I used it as > an example because it is probably one of the most widely-distributed > meteorites on the market, with the possible exception of Campo del > Cielo. While the success rate of pairing NWA 869 stones is quite > high, the overwhelming amount of self-pairing that goes on in regard > to 869 is problematic in and of itself. We all agree that > self-pairing should not be the rule of the land, yet it happens with > great frequency with 869. By law of averages, there should be some > mistakes - 869 offered as unclassified and unclassifieds offered as > 869. (Although technically any self-paired meteorite that is not > analyzed in a lab is "unclassified") > > Newbies may not realize how easily and accurately 869 can be > self-paired by an experience eye. They just see that meteorite all > over the market and the usual newbie question will arise - how do I > know it is a meteorite at all? Or, how do I know it is NWA 869 and > not something else? Newbies who are wondering such things, might come > to the conclusion that such a meteorite is better purchased from an > IMCA source, when in fact, almost all sources of 869 engage in > non-scientific self-pairing, so therefore an IMCA-sourced 869 is no > better or no worse than a non-IMCA-sourced 869. > > Well, the IMCA seller is obligated to refund the buyer's money if an > authenticity issue arises later, right? Maybe. If they value their > IMCA membership, they will refund the buyer's money with no questions > asked. If they don't give a hoot about their membership, they may > resign and walk away from the IMCA without issuing a refund to the > buyer - this has happened before. Really, the issue of giving refunds > is not an IMCA issue, it is the hallmark of an ethical seller, > regardless of their affiliation with any group. > > Ok, Battle Mountain was a bad example. I did not consider the limited > distribution and superior documentation of the fall. Let's strike that > one and just use the example of a non-NWA fall (pick one) versus a > fresh-appearing NWA find. If an unethical seller offers a NWA find > stone as a more-valuable fall, how can any person or group "guarantee > authenticity" short of full lab analysis? If a question arises, the > stone will need to be microprobed. The IMCA does not own a > microprobe, although many members certainly have access to one at > various institutions. > > Let's say the suspect stone is microprobed and is revealed to be a > different petrologic type than the stone was being offered as. For > Battle Mountain, it is an L6. If the suspect stone is revealed to be > an H5, then it is obviously not Battle Mountain. Mystery solved and > the suspect stone is not Battle Mountain. The seller in that case is > either a scammer or an unwitting dupe. > > But, what if the microprobe reveals the suspect stone is indeed an L6. > The problem becomes more complex. Ratios of target minerals can be > compared and if they are wildly-different, then the mystery is solved. > But what if the suspect L6 has mineral ratios within the standard for > deviation or the margin of error for the fall in question? Then what? > Thin-section analysis? Or....? > > Guaranteeing "authenticity" opens up a very deep rabbit hole. > > Perhaps a better motto would be "satisfaction guaranteed" - and even > that can be problematic if the member in question resigns and runs > without giving a refund. Would the buyer be satisfied with such a > result? > > Like I said before, I think the IMCA is a good idea and serves a good > purpose in the community. However, they should be careful when > issuing statements such as "authenticity guaranteed" because > determining authenticity requires extensive analysis by reputable > scientists in a lab stocked with millions of dollars worth of > high-tech equipment. > > Best regards and Happy Huntings, > > MikeG > > -- > ------------------------------------------------------------- > Web - http://www.galactic-stone.com > Facebook - http://www.facebook.com/galacticstone > Twitter - http://twitter.com/galacticstone > Pinterest - http://pinterest.com/galacticstone > ------------------------------------------------------------- > > > > > > > > > > > On 11/23/14, Robert Verish <bolidechaser at yahoo.com> wrote: >> Maybe Michael's questions are rhetorical, but I haven't read any > answers or >> replies. >> After all, in the past others have asked these same questions, and still >> never any satisfactory answers. >> >> But, allow me to answer the question of "how do you guarantee >> authenticity?", by stating the obvious: >> authenticity is established through well-documented provenance. >> >> Which leads me to question why chose Battle Mountain and NWA 869 to use as >> examples to prove your case. You couldn't pick two meteorites that > would be >> less supportive of the point you are trying to make. >> I'm not saying that there aren't too many NWA chondrites being > self-paired >> to NWA 869 for marketing convenience, but this is one that dealers somehow >> have maintained a respectable "batting average" with their > guessing. >> Besides, how many complaints are there? Who's expectations are not > being >> met when they purchase an uncut chondrite labeled as "NWA 869"? >> >> Battle Mountain! BaM is the best example of a well-documented, recent > fall. >> It has the shortest chain of provenance! It fell late 2012; it's > hunted >> and recovered by collectors and dealers; it's sold by those same > dealer's >> and BINGO, it's in your collection. Any questions? If so, don't > have very >> far to go to get answers. That's called "provenance". >> Who is "guaranteeing authenticity"? A quick search of > "Completed" eBay >> auctions shows only one meteorite dealer (Mendy) having sold a 3.9g >> partslice of BaM, where he clearly shows his source, the finder, by way of >> the original label. That's another example of provenance. >> >> But just because Michael used bad examples doesn't mean that the point > he is >> trying to make isn't valid. In fact, I think the majority of us agree > with >> him in principle. >> Yet, asking questions such, "How do I really know that it is Battle > Mountain >> and not one of hundreds of NWA L6 look-a-likes?" is very > counter-productive, >> to say the least. Given that other customers can ask those same question, >> it's akin to pouring gasoline over oneself and then volunteering to > light >> the ceremonial Burning-Man bon-fire. >> To satisfy my curiosity, I found a link to images of "hundreds of NWA > L6 >> look alikes": http://tinyurl.com/ksdmulw >> Now, compare those to these images of BaM (L6) : >> http://tinyurl.com/oukblbh >> >> Wow, never expected that my answer to a rhetorical question would be this >> long. >> Anyway, I should thank everyone for giving my this opportunity to talk once >> more about Battle Mountain. >> It has prompted me to relinquish 2 of my BaM specimens, and I've > uploaded >> them onto eBay. >> If it makes everyone happy, I WON'T "guarantee authenticity"! >> But I'm still going to guarantee your satisfaction, or your money back! >> (Isn't that really the only thing that IMCA can require of their > members? >> ;-) >> Bob V. >> >> On Sunday, November 23, 2014 9:01 AM, Galactic Stone & Ironworks via >> Meteorite-list <meteorite-list at meteoritecentral.com> wrote: >> >> >>> >>> >>> Hi Jim and List, >>> >>> Please do not take this as a knock at the IMCA, because it is not >>> intended that way, and I certainly do want to experience the old >>> "shoot the messenger" syndrome again. >>> >>> How exactly does anyone "guarantee authenticity" in regards to > meteorites? >>> >>> Let's look at a typical example that happens on a daily basis in the >>> meteorite community : >>> >>> If I am offered a specimen of Battle Mountain by a dealer. How do I >>> really know that it is Battle Mountain and not one of hundreds of NWA >>> L6 look-a-likes? Regardless of whether or not the seller is an IMCA >>> member, how can one guarantee authenticity of any specimen, unless >>> that particular specimen has been examined and analyzed by a reputable >>> scientist? >>> >>> I do not know of any dealers who have every batch of material they >>> acquire tested at a lab. They use a combination of faith in their >>> sources and hand-examination to determine if the material should be >>> offered. Sure, new unclassified material is analyzed to have it >>> classified and officially approved by Met Soc. But what about NWA >>> 869? How many dealers have their NWA 869 analyzed prior to offering >>> it? If it is untested, then how can one make any guarantees? >>> >>> Best regards, >>> >>> MikeG >>> -- >>> ------------------------------------------------------------- >>> Web - http://www.galactic-stone.com >>> Facebook - http://www.facebook.com/galacticstone >>> Twitter - http://twitter.com/galacticstone >>> Pinterest - http://pinterest.com/galacticstone >>> ------------------------------------------------------------- >>> >>> >>> >>> >>> >>> On 11/23/14, Jim Wooddell via Meteorite-list >>> <meteorite-list at meteoritecentral.com> wrote: >>>> Hello all! >>>> >>>> The IMCA has but one purpose, does it not? How can you possibly > argue >>>> that??? >>>> It's for collectors, dealers and sellers....pretty basic > mission, >>>> Authenticity . Nothing wrong with that! >>>> And any kind of outreach by the IMCA very much appears to be a > mistake >>>> in perception. >>>> The IMCA is not responsible for anything it's members do and > probably >>>> should not take any credit for >>>> anything their individual members do as it implies responsibility. >>>> >>>> Like Gary said, it's up to the individual. >>>> I don't think anyone is not supportive of outreach, it's > just not the >>>> function of the IMCA. >>>> >>>> REF: >>>> > http://imca.cc/index.php?option=com_content&task=view&id=1&Itemid=14 >>>> >>>> >>>> Jim >>>> >>>> >>>> On 11/22/2014 8:39 PM, Galactic Stone & Ironworks via > Meteorite-list >>>> wrote: >>>>> Ray Watts said : >>>>> >>>>> "I have been told in the past that out reach is over reach > for the >>>>> I.M.C.A." >>>>> >>>>> Whoever said that, has no business being in the IMCA or any > other >>>>> group that claims to be supportive of education and outreach. > Walk >>>>> the walk or get the hell out. >>>>> >>>>> My two cents. >>>>> >>>>> Also, agree 110% with what Gary said. >>>>> >>>>> Best regards, >>>>> >>>>> MikeG >>>>> >>>> >>>> >>>> -- >>>> Jim Wooddell >>>> jim.wooddell at suddenlink.net >>>> http://pages.suddenlink.net/chondrule/ >>>> >>>> ______________________________________________ >>>> >>>> Visit the Archives at http://www.meteorite-list-archives.com >>>> Meteorite-list mailing list >>>> Meteorite-list at meteoritecentral.com >>>> https://pairlist3.pair.net/mailman/listinfo/meteorite-list >>> >>>> >>> ______________________________________________ >>> >>> Visit the Archives at http://www.meteorite-list-archives.com >>> Meteorite-list mailing list >>> Meteorite-list at meteoritecentral.com >>> https://pairlist3.pair.net/mailman/listinfo/meteorite-list >>> >>> >>> >> > ______________________________________________ > > Visit the Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > Meteorite-list at meteoritecentral.com > https://pairlist3.pair.net/mailman/listinfo/meteorite-list > Received on Mon 24 Nov 2014 03:09:32 AM PST |
StumbleUpon del.icio.us Yahoo MyWeb |