[meteorite-list] vaca muerta euc- what is it?

[mckinney trammell]

thanks- will save this info.




----- Original Message ----
From: al mitt <almitt at kconline.com>
To: mckinney trammell <bigpineartifacts at yahoo.com>; 
meteorite-list at meteoritecentral.com
Sent: Sat, October 16, 2010 9:55:05 AM
Subject: Re: [meteorite-list] vaca muerta euc- what is it?

Hi Mckinney,

It's been suggested that mesosiderites are the result of a collision of a parent 
body containing eucrite material and core material. The result is a melting of 
the material and forming the nearly equal parts of metal to silicate. There is a 
lot that is not understood yet about this class, but it is thought it could have 
impacted when the core of a asteroid was still molten with material from the 
eucrite parent body.

Because of this it is possible that some of the material was melted (as in your 
Vaca sample) into a glassy material. I believe there is an absence of olivine in 
mesosiderites.

McSween book is a good source for chemical makeup of various types of 
meteorites.

--AL Mitterling

----- Original Message ----- From: "mckinney trammell" 
<bigpineartifacts at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Saturday, October 16, 2010 9:21 AM
Subject: [meteorite-list] vaca muerta euc- what is it?


> i have several pieces of vaca muerta "eucrite". it is not like any of the 
other
> euc (soft, granite appearance, white). this is very hard , has a "compressed
> granular" textue and is homogenous- all one type of mineral. it is glass/
> olivine -like and take a very hi polish. what is this mineral? why is it 
called
> a "Eucrite" since it does not resemble any of the other ones out there? are
> there other "eucrites" made of this material? if so got pix? any info or
> additional other pix of this or other eucrites made of this material
> appreciated.
> 
> 
> 
> 
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