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"David Marjanovic" <firstname.lastname@example.org> writes:
> > If the specific gravity is 4 g/cm3 (what is too much according Mr
> > Marjanovic)
> Please note that I have no idea at all about the density of
> chondrites, or any meteorites for that matter. I was simply guessing
> chondrites would contain much silicate, and I found in a textbook
> that glass
> had a density of 2.5 g/cm³. Well, I ignored the fact that those
> are probably the silicates of heavier metals than the sodium of
The specific gravity of the Allende carbonaceous chondrite (type CV3) is
3.67 g/cm^3. IIRC, Murchison (type C2) has roughly the same sp. gr. as
Allende. Those are typical examples of CCs. The atypical Orgueil
meteorite (type C1) is lower. Orgueil is so hydrate-rich that some
workers once believed it to be a fragment of the rocky core of a comet.
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