[meteorite-list] Question Regarding Fusion Crust

[Michael Gilmer]

Hi Greg,

Yes and no.  Maybe.  Sort of.  You can draw some general conclusions
from the look of the fusion crust - color and texture.  Some
achondrites have distinctive fusion crusts, as do some exotic
chondrites.  Generally speaking, the fusion crusts of many OC's share
a common look and texture.  Look at photos of fresh Bensour, Bassi,
Chergach, Tamdakt, Ash Creek, Buzzard, Mifflin, etc - 100% crusted
stones with no breaks showing the interior will look very similar.

Calcium-rich crusts seen in some achondrites have a distinctive
glossiness to them, and some lunar and martian crusts can be brownish
or even greenish.

Best regards,

MikeG
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Mike Gilmer - Galactic Stone & Ironworks Meteorites

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On 3/11/11, Thunder Stone <stanleygregr at hotmail.com> wrote:
>
> Hi List:
> Is there a way to tell if a meteorite is a Chondrite by looking at the
> fusion crust, or looking a just the exterior?  I have noticed many times
> meteorites pictured and they are fully crusted, but are called chondrites.
>  Is it just experience of looking at many chondrites or something about the
> fusion crust that you are able to tell the difference?.
> Greg S.   		 	   		
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