These concretions are due to water infiltration and deposit of limestone. It's a particularly long process. This is another illustration of nature beauty, don't you think ?
I had both of your post in the VB and You have done a fantastic job on both!!! I enjoyed viewing the caves very much. It is interesting to see different thing!! Thanks for sharing.
It is known that there is an infinite number of worlds, simply because there is an infinite amount of space for them to be in. However, not every one of them is inhabited. Therefore, there must be a finite number of inhabited worlds. Any finite number divided by infinity is as near to nothing as makes no odds, so the average population of all the planets in the universe can be said to be zero. From this it follows that the population of the universe is also zero, and that any people you may meet from time to time are merely the product of a deranged imagination.