[meteorite-list] Rusty droplets/AD

From: Gerald Flaherty <grf2_at_meteoritecentral.com>
Date: Fri, 08 Jun 2007 17:22:21 -0500
Message-ID: <3F9D85E7951246EFBCDC1B1701D1C05A_at_JerryPC>

Al, thanks a lot for the information. I might have missed the tip about
recharging the dessicants on previous threads so the information you
provided obviates the need of my asking something that I've wondered about.
Microwaves are out right??
Jerry Flaherty
----- Original Message -----
From: "AL Mitterling" <almitt at kconline.com>
To: <Meteorite-list at meteoritecentral.com>
Cc: "giovannisostero" <GiovanniSostero at libero.it>
Sent: Friday, June 08, 2007 7:56 AM
Subject: Re: [meteorite-list] Rusty droplets/AD


> Hi All,
>
> You can also purchase one or more of my new Meteorite Dry products and
> place in your display cabinet. I've been experimenting with these in my
> own cabinets. They are basically dessicant/silica gel with mostly white
> crystals but I have added enough of the blue crystals that they "turn
> color" when they become moist. Since they are in a perforated tube with
> caps it allows the drier to do it's job without coming into contact with
> the meteorites.
>
> I'd say the draw back (if it is any at all) is having to pull the end off
> a tube, place the dessicant in a pan and place in a pre-heated oven at
> about 350 degrees for about a half hour or less so you can re-use over and
> over. They seem to fit well into my crowed cases and although I have done
> a good job at keeping specimens, I have found these are still pulling some
> humidity from the cases over a period of time despite my precautions.
>
> My initial offering of these had a fair turn out but I thought more people
> would be interested in these and protecting specimens. I was expecting
> more responses than I received. If anyone is interested in these please
> contact me off list.
>
> Some meteorites are rust prone, Ghubara is one of them. Even under perfect
> preparation methods if not properly kept they will still oxidize as the
> oxygen molecules attach themselves to the iron in specimens. Living in a
> low humidity climate helps but a lot of us don't have that option and so
> keeping specimens as dry as possible is the best answer. All my best!
>
> --AL Mitterling
> Mitterling Meteorites
>
> mark ford wrote:
>
> > <>or use dessicant/silica gel with the rock and recharge it regularly).
> >
> > 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
>
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Received on Fri 08 Jun 2007 06:22:21 PM PDT