[meteorite-list] Stability of Sericho (Habaswein)
From: Rob Wesel <nakhladog_at_meteoritecentral.com>
Date: Mon, 4 Dec 2017 18:31:29 -0800
From: "Adam Hupe via Meteorite-list" <meteorite-list at meteoritecentral.com>
Sent: Monday, December 04, 2017 5:58 PM
To: "metlist" <meteorite-list at meteoritecentral.com>
Subject: Re: [meteorite-list] Stability of Sericho (Habaswein)
> The fact that dealers are applying sealants and anti-rust coatings to this
> Pallasite, like an old 55 Chevy from the East Coast, indicates that
> Sericho (Habaswein) is indeed a ruster. I received several reports today
> of rusticles, green goo, chemical smells, dislodged crystals and popping
> noises coming from specimens. Maybe it should be upgraded from ruster to
> serious ruster.
> Stable Pallasites like Esquel do not require any special treatment other
> than avoiding chlorinated water during preparation, proper high-grade
> polishing and low humidity storage/display.
> I avoid rusters at all costs,
> On 12/4/2017 10:40 AM, Bigjohn Shea wrote:
>> I got my sealed full slice of Habaswein from Rob many months ago and
>> don't see a lick of rusting on it. Sealant appears to be working great.
>> If I were in the market for a specimen, I'd listen to the guy who
>> actually has experience working with the meteorite in question.
>> Large multi-kg specimens of Habaswein do sell in the 0.5$/g range.
>> Expertly prepared slices do not. They sell for 8-10 times that price.
>> That distinction needs to be made.
>> John A. Shea, MD
>> IMCA 3295
>> Sent using the mail.com mail app
>> On 12/4/17 at 11:14 AM, Adam Hupe via Meteorite-list wrote:
>>> My advice is to stay away from any sliced pieces with a lacquer or
>>> clear-coat surface. It is sign that shortcuts were taken in its
>>> preparation. Proper polishing reduces the surface area on cut pieces of
>>> any meteorite aiding in the prevention of "lawrencite disease." Not
>>> only that, these coatings will accelerate the deterioration process by
>>> trapping moisture. It is important to store this material in low
>>> humidity environments with plenty of air circulation. Also, exposure to
>>> direct sunlight will cause the crystals to darken with time.
>>> A lot of collectors are in the wait and see mode since there are several
>>> metric tons of this material available. The lowest price I have seen was
>>> around 46 cents a gram for a recently sold piece on eBay.
>>> Happy Collecting,
>>> On 12/2/2017 5:14 AM, Andrey via Meteorite-list wrote:
>>>> Hello Dear List Members,
>>>> Just a small question to new Sericho (was Habaswein) Kenya pallasite
>>>> owners, dealers, cutters: how stable is it?
>>>> From my own experience I noticed its extreme degree of instability,
>>>> similar to Admire or even more... Is this unlucky piece, just fortuity
>>>> or is it really so?
>>>> Thanks in advance for your answers,
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Received on Mon 04 Dec 2017 09:31:29 PM PST