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Porosity
No, those are called 'regmaglypts' and they usually form when a weaker
spot of a meteorite get blasted away during the atmospheric plunge.
Porosity could be defined as how much liquid a meteorite could absorb
without changing volume.
If you take a sample of Allende, maybe any carbonaceous chondrite, and
put a drop of water on it, you will see it disappear almost instantly.
Likewise, El Hammami is a rather porous meteorite, and Mt Tazerzait
shows this to an extreme - there are gaps obvious to the naked eye
between parts of the 'matrix' of the meteorite (Mt Tazerzait may not
actually have a matrix).
JJSwaim wrote:
> If there is one thing I have learned
> on this list it is that meteorites, as well as tektites, are aerodynamically
> shaped with pock marks. I assume this is what they mean by pores. Is this
> correct?
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