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Originally Posted by Vasily
Round is not at all an unusual form in nature. Cave pearls for example are round "...due to the uniform growth of the pearl, not to any sort of rotation due to dripping. A sphere allows the greatest amount of deposition for the smallest surface area and is thus most likely, even if the nucleus is highly irregular...."
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And what you managed to miss in your quote of the piece of article was this
Quote:
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The dripping causes vibrations in the pool which may prevent the pearls from cementing (with calcite) to the pool floor, though many pearls are found cemented in.
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It implies that normally the pearls would be cemented to each other or to the sides of the pool but the dripping causes ripples to the pool surface which keep the pearls separated beneath.
I think there would have to be a tsunami to keep concretions that large to remain separated. So... this article is hardly relevant to the discussion of this large 'concretion' since this one is huge and solitary (as far as we know) Next explanation please...
I understand round is not unusual in nature but THAT round is unusual in weathered rocks and there is a series of wild guesses by scientists as to how they 'may' or 'might' form. Basically, they dont know so why not say so rather than acting like they do. I suppose thats usual though.
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