Hi Giovani, Yes firstly take them out of plastic! Any moisture/chemicals trapped in the rock will stay in the rock if it is in plastic, you only want to put dry, stable material into plastic boxes, (or use dessicant/silica gel with the rock and recharge it regularly).
As Adam suggested you can also use Iso-alcohol (pure ethanol) it's good for getting rid of moisture in extreme cases but make sure it is 'pure anhydrous alcohol' or you will be putting more water in than you take out! - also gently warm the slice afterwards to drive off any moisture then sand with very very fine sanding paper. They also preferably need to be kept somewhere dry like inside a cabinet with dessicators inside, or better still a dehumidifier. Most slices reach a stable point eventually once you have done this! Best Mark Ford -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of giovannisostero Sent: 07 June 2007 19:15 To: meteorite-list Subject: [meteorite-list] Rusty droplets Hi, I noticed that a coupled of slices (Ghubara and NWA 869) I bought few months ago from two different dealers, are producing some small liquid droplets of rusty appearance. After cleaning, the droplets develope again in a matter of few weeks. Any idea about how to cure it? The samples are stored in plastic envelopes but without any particular desicant. Cheers, Giovanni ------------------------------------------------------ Leggi GRATIS le tue mail con il telefonino i-mode(tm) di Wind http://i-mode.wind.it/ ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
