[meteorite-list] Etching advice
Hello all, I realize many people ask basic etching advice on the list, but this request is of a more advanced type. I also realize that etching is an art form with many different styles and techniques that some may not be willing to share publicly. So, feel free to respond to all, just to me or not at all. :-) If you wish to correspond with me alone but want the information to remain confidential, please tell me so and I will not share it if that is your wish. I am using Nital and ferric chloride (FC) for my etching depending on the effect I want. However, one thing I am having trouble achieving is the bright etch that some of our European artisans are able to achieve. I am polishing my surfaces to a very high gloss using a buffing wheel before I etch. After, I wash them with dishwashing soap to remove any oils and dry them thoroughly. FC does not provide a bright etch, but Nital (10% solution) should and that is where I am having trouble. Any advice would be GREATLY appreciated! Mendy Ouzillou __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Etching advice
Hi Mendy and all, Asking how some of the other dealers prep and etch meteorites is like asking them to assist you in having a competitive edge over them. I know your a sincere person and I would trust you with information but it's hard to offer up advise while still in the business. One item that all preppers should avoid is using tap water to process meteorites as many city water supplies have chlorine in the water and this can and will effect meteorites and even cause them to rust. I think most everyone knows this but still will volinteer this info. Use distill water instead. Best! --AL Mitterling Mitterling Meteorites Quoting Mendy Ouzillou ouzil...@yahoo.com: Hello all, I realize many people ask basic etching advice on the list, but this request is of a more advanced type. I also realize that etching is an art form with many different styles and techniques that some may not be willing to share publicly. So, feel free to respond to all, just to me or not at all. :-) If you wish to correspond with me alone but want the information to remain confidential, please tell me so and I will not share it if that is your wish. I am using Nital and ferric chloride (FC) for my etching depending on the effect I want. However, one thing I am having trouble achieving is the bright etch that some of our European artisans are able to achieve. I am polishing my surfaces to a very high gloss using a buffing wheel before I etch. After, I wash them with dishwashing soap to remove any oils and dry them thoroughly. FC does not provide a bright etch, but Nital (10% solution) should and that is where I am having trouble. Any advice would be GREATLY appreciated! Mendy Ouzillou __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD- Major website update
Hello all! Just a quick message to let you know of a major update on my website. I'm curating the sale of a collection, about half of the specimens are up on line right now and the other half should be online before the month end. http://gcmeteorites.blogspot.com Enjoy! Gaetan Cormier GC Meteorites: http://gcmeteorites.blogspot.com Member of the Impact Field Studies Group http://web.eps.utk.edu/~faculty/ifsg.htm __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Wheel Concerns Prompt New Route for Mars Rover Curiosity
http://www.spaceflightnow.com/mars/msl/140218dunes/ Wheel concerns prompt new route for Mars rover BY STEPHEN CLARK SPACEFLIGHT NOW February 18, 2014 Planners in charge of plotting the course of NASA's Curiosity rover, which is trekking toward a massive mountain on the red planet, have selected a route with fewer rock hazards in lieu of alternate paths that could exacerbate damage to the robot's wheels. The rover traversed a dune in early February to take a southwestward route toward the rover's next science target, a junction of different rock types where scientists are considering using the rover's drill. The 3-foot-tall dune spanned two scarps along a ridge marking the eastern edge of a valley. The path avoids sharp rocks that could further damage the rover's wheels, but dunes present their own dangers. NASA's earlier Mars rovers, Spirit and Opportunity, were trapped in sand dunes. Opportunity was able to break free a dune after more than a month of immobility in 2005, but Spirit was mired in a sand trap tilted away from the sun during a Martian winter, dooming the rover when it was unable to generate enough power to stay alive. Engineers noticed the damage on Curiosity's six wheels last year. They expected the rover to accumulate dings at it scraped over rocks, but the wear and tear observed on the rover's wheels was greater than they anticipated less than a year-and-a-half since landing. Officials have occasionally inspected Curiosity's damage with the rover's robotic arm camera, revealing several holes in the aluminum wheels. [Image] This image taken by the Curiosity's rover's robotic arm camera shows scuffs and holes in one of its six aluminum wheels. Credit: NASA/JPL-Caltech/MSSS The discovery prompted managers at the Jet Propulsion Laboratory in California to seek more favorable ground for the next phase of Curiosity's drive toward Mount Sharp, a three-mile-high peak inside Gale crater, the rover's landing site. Curiosity's odometer recently crossed 3 miles, with several miles still to go before reaching Mount Sharp. Scientists expect the rover to arrive at its base some time this summer. Observations from sensors mounted on orbiters indicate Mount Sharp harbors clay minerals likely deposited by water some time in Mars' ancient past. The clays line the mountain's foothills inside layered terrain already spotted from a distance by Curiosity's panoramic camera. The rover's complex instrumentation has already explored an ancient riverbed, confirming the location could have once supported microbial life when Mars was warmer and wetter. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - NWA 4663 Lodranite
Hi list I would like to offer a 14.95g slice of NWA 4663 Lodranite for sale. Size is 67 x 39mm. Please see the picture at http://www.flickr.com/photos/97177626@N07/12620207813/ Provenance is Daryll Pitt. Price is $650 shipped anywhere. Thanks for reading! Nigel Mann IMCA 5835 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] new meteorite-related video series: OSIRIS-REx presents 321Science!
Greetings Meteorite_List Friends, OSIRIS-REx presents/321Science! / I would like to draw your attention to a new series of monthly YouTube videos from the OSIRIS-REx Asteroid Sample Return Mission that are related to meteorites and their parent bodies. They are short, informative, and entertaining videos meant to illustrate a particular concept. We welcome ideas for new videos, too! So if you have a question or concept you would like to see please contact Dr. Anna Spitz at asp...@lpl.arizona.edu. You are welcome to show these videos to classes, astronomy or /meteorite/ club meetings, scouts, etc. Personally I think they are great icebreakers to stimulate conversation and you can look forward to a new one every month. Best regards, Dolores Hill The OSIRIS-REx Asteroid Sample Return Mission posted new /321Science/ videos: * /What is the Yarkovsky effect? /http://www.youtube.com/watch?v=DQtj0RhimZYlist=PL-sncRQpy4-sN0ROwD3a1oR4VivhBBm_Xfeature=c4-overview-vl * /What is Thermal Inertia? /http://www.youtube.com/watch?v=Ndzc4sAv0qslist=PL-sncRQpy4-sN0ROwD3a1oR4VivhBBm_X * /What is the difference between prograde and retrograde motion? /http://www.youtube.com/watch?v=lWfnsyTXm38list=PL-sncRQpy4-sN0ROwD3a1oR4VivhBBm_X Click on the individual links or access them at youtube.com/osirisrex http://youtube.com/osirisrex. -- Dolores H. Hill Sr. Research Specialist Lunar Planetary Laboratory Kuiper Space Sciences Bldg. #92 The University of Arizona 1629 E. University Blvd. Tucson, AZ 85721 http://www.lpl.arizona.edu/ Communication and Public Engagement Team Co-Lead Target Asteroids! and Target NEOs! citizen science OSIRIS-REx asteroid sample return mission http://osiris-rex.lpl.arizona.edu/ http://osiris-rex.lpl.arizona.edu/?q=target_asteroids http://www.astroleague.org/files/u3/NEO_HomePage.pdf __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite crashed through house in Oslo
2,8 kg meteorite crashed through a house in Oslo. According to experts, probably a piece from the 2012 Oslo meteorite fall. Pictures and video: http://www.dagbladet.no/2014/02/18/nyheter/innenriks/meteoritter/meteor/meteoritt/31866449/ __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite crashed through house in Oslo
Good news. Maybe this owner will have more sense than the Grefsons and this fall will finally be classified and submitted to the Met Bulletin. And maybe pieces of this meteorite will hit the collector market at less than planetary prices. :) 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 2/18/14, Geir Barstein geir.barst...@dagbladet.no wrote: 2,8 kg meteorite crashed through a house in Oslo. According to experts, probably a piece from the 2012 Oslo meteorite fall. Pictures and video: http://www.dagbladet.no/2014/02/18/nyheter/innenriks/meteoritter/meteor/meteoritt/31866449/ __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite crashed through house in Oslo
Excellent news and a great article! A real surprise !! Thank you for letting us know, Geir! Best regards Martin __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
