[meteorite-list] Irons and fusion crust

[Christian Anger]

Hi,

here you have excellent fusion crust on a Sikhote Alin,

www.austromet.com/collection/Sikhote_Alin_18.7g_E.jpg


enjoy,

Christian


I.M.C.A. #2673 at www.imca.cc
website: www.austromet.com
 
Ing. Christian Anger
Korngasse 6
2405 Bad Deutsch-Altenburg
AUSTRIA
 
email: christian.anger at aon.at
email: meteorites at austromet.com

> -----Original Message-----

> From: meteorite-list-bounces at meteoritecentral.com [mailto:meteorite-list-

> bounces at meteoritecentral.com] On Behalf Of Dave Freeman mjwy

> Sent: Sunday, January 07, 2007 7:50 PM

> To: Michael Farmer

> Cc: Dr. Svend Buhl; meteorite-list at meteoritecentral.com

> Subject: Re: [meteorite-list] Irons and fusion crust

> 

> Dear Crusty's;

> I think the whole deal here with "fusion crust" which is what I choose

> to call it, all boils down to what academia and thus the rest of us

> mortal ones choose to call "fusion crust".

> We have discussed this issue numerous times here and it very much

> relates my thought to President Clinton's comment a while back,

> "No I did not have sex with that woman"......well, one has to define sex

> first.  Agreement was that something occurred, just how to define it.

> 

> Call it a glassy altered surface deposit if you like and it makes you

> feel good but in my feeling, anything other than an iron surface, and

> anything that has been effected by an iron meteorite blasting through

> the atmosphere and directly related to the affects of heating as a

> result of passing through the Earth's atmosphere should be categorized

> as fusion (because it was hot and burned) crust (because it is on the

> exterior surface of) a meteorite.   Don't care if it  is glassy or

> melted cheese whiz. Don't care if it is .000001 mm in thickness or a

> full two inch thick crusty black nasty stinky filthy burned rotten

> yam..........if it is a result of heat of entry, and on the surface of

> an iron meteorite when fresh or relatively freshly occurred, then it

> might be a fusion crust.

> Just my 2 sense'.

> Dave Freeman

> with more sense than some

> 

> 

> 

> Michael Farmer wrote:

> 

> >I completely agree that iron meteorite falls have

> >fusion crust. Come on, they meteorites are often

> >covered with frothy blue-black crust, sometimes 2 or 3

> >mm thick, it flackes off, it was caused by the fusion

> >of iron minerals while burning at thousands of degrees

> >on entry, exactly the same way silicates form fusion

> >crusts on stones. Thus, we have two different types of

> >materials, burning, and when they land, they have a

> >surface of crust comprised of molten material due to

> >heat alteration.

> >How can that not be called a fusion crust?

> >Michael Farmer

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> >

> >

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