[meteorite-list] Red(dish) Fusion Crust

[Michael Johnson]

Same as I thought perhaps oxidation on one side of this bensour but now I learn otherwise:
http://www.johnsonmeteorites.com/BENSOUR.html

Johnson, M.D.
www.johnsonmeteorites.com
Thumbed on my iPhone

On May 29, 2013, at 12:14 PM, "Martin Altmann" <altmann at meteorite-martin.de> wrote:

> Hiho,
> 
> I'm thrilled, maybe now many readers of the list
> rush to their drawers and showcases, to look for more examples of other
> falls,
> where they thought before, that the lighter colour was due terrestrial
> oxidation and the individuals not that fresh.
> 
> Let's wait, what they'll find!
> Martin
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: Jason Utas [mailto:meteoritekid at gmail.com] 
> Gesendet: Mittwoch, 29. Mai 2013 18:02
> An: Martin Altmann
> Betreff: Re: [meteorite-list] Red(dish) Fusion Crust
> 
> Hola,
> Looking at his page....the Buzzard is red to a much lesser extent.
> Good observation, though -- it makes sense that H's would still show at
> least some hematite presence, if that is was causes the red coloration.
> 
> The first link in my last email goes against what you say above.  Note that
> the pictured stone has a black, frothy rear and a reddish shield-shaped
> front.
> 
> Regards,
> Jason
> 
> www.fallsandfinds.com
> 
> 
> On Wed, May 29, 2013 at 8:41 AM, Martin Altmann
> <altmann at meteorite-martin.de> wrote:
>> Hi,
>> 
>>> But, then...why don't H chondrites usually form such red fusion crusts?
>> 
>> But they do,
>> the example on Svend's page is a Buzzard Coulee, and in literature you 
>> read it about Pultusk.
>> 
>>> This list seems to have a short memory.
>> 
>> Well, the specialty here, is that a colour variation in the crust, if 
>> found only on one side, can be used as criterion for orientation. Most 
>> of the examples shown here, underline, that stones must have had at 
>> least a longer phase of stable flight, because it is indicated by the 
>> lipping around the edges of these sides. (Which identify the coloured
> sides as backsides).
>> 
>> Best,
>> Martin
>> 
>> 
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