The answer varies. Crystals have been known to "grow" or rather, accumulate within days. Larger formations can continue to grow over hundreds or thoursands of years, but quite remarkable formations can take place in even a decade.
I assume you mean caves well decorated with stalagmites etc. They are in most limestone caving areas but if you want to visit them either take up caving properly - for both your safety and to learn to protect the caves you visit - or visit show-caves.
Germany
The entire world, so to speak.
crystals are blank that have had a chance to grow and take shape.
Crystals do not give energy!
salt has stronger and more quality than suger crystals
Yes if you can get citizenship for that child in your home country.
People go to crystal caves for the look of them… They are beautiful caves! But they also may come to conduct research. And some people go in caves for an adventure or as a hobby… You may ask why these people even dare to go that far for adventure, The truth is that some people cannot live without adventure. There are certain cells in the brain that make an individual want to take on an adventure. But even them- when they are about to do the adventure- get scared or nervous. But they do it anyway, Because if they don't they will regret it!
"Allowed to"? No. Will he? Most likely. When an outgoing leader decides to steal from the country they rule, there is little to stop them. They tend to seek refuge in a country which is sympathetic to them, and which will, for a price, allow them to take their stolen wealth with them.
it could take days to weeks
Borax crystals can take around 24-48 hours to start forming after setting up the solution and placing the seed crystal. The full growth process can take 1-7 days depending on the desired size of the crystals and the environmental conditions.