Mike T. wrote: I would consider sending this off for classification if someone would recommend a good institution that would be willing to look at it. This new slice has both clasts.
Hello Mike, Steve, and BL fans, Some interesting tidbits about Dean's BL chondrite because Steve wrote: As always nice info on this most extrordinary piece... I really like to keep this thread going... 1. Dean believes that they are all paired because they came in together in a single bag, they all looked the same and they also had similar magnetic qualities. 2. Bruno Fectay, on the other hand, was convinced that there were seven different chondrites in Dean's lot (three stones of them Taouz 002, LL6). 3. Dirk Ross was also sure there were at least 3 different meteorite types involved 4. In August 2002, Dirk called upon other buyers of Dean's BL: "Anyone wanting their NWA from Mr. Bessey classified and compared with the one that I will classify, if interested please send 5-10 grams (enough for a thin section and representing the variation within their stone). This will tell us if they are all paired or not. Please include the BL#. Please contact me offline if interested." 5. Steve Witt saw less metal than in any other chondrite he had ever seen. He wasn't even sure if it was indeed a chrondrite. He couldn't detect any chondrules in his piece. 6. Jim Baxter about BL chondrules: "Interestingly in contrast to your description mine has quite a few chondrules scattered in the matrix, a slight predominance of glassy over porphyritic 7. I responded: This afternoon I looked at my cut specimen under my MBC-10 microscope and after quite some time "discovered" what m a y be round or somewhat oval chondrules but I am not sure ... and if they are chondrules, only a few - 3 or 4. Only a thin section* would definitely clarify this. The chondrule presence or absence thereof is especially interesting as Jim Baxter's specimen has quite a few, readily discernible, scattered chondrules in contrast to my description. * Here is my thin section decription: Both in hand specimen as in thin section there are areas that are absolutely featureless, devoid of any chondrules (some chondrule-like features can be vaguely seen) or other inclusions, and look almost achondritic. The view under crossed polars is breathtaking: While there are chondrules and mineral components of various sizes in a fine-grained, almost opaque groundmass, the featureless clast in my TS shows an incredible, equi- granular structure without any fine-grained, interstitial groundmass ... as if it had been "blown" or "swept" away. Instead, hundreds and hundreds of colorful little crystalline pearls (of olivine and pyroxene) that look as if seen from a distance. 8. With regard to the wet look of the fusion crust, Steve Witt also wrote: "In areas like concavities where the crust was protected it appears to be v e r y g l o s s y ." Best, Bernd ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
