There are a lot of gemstones but nobody knows for sure because people are finding new gemstones all the time. The "new" gems could have been on here since earth was first formed but is new to us because we have just discovered it.
No one can know for sure as gems are being discovered all the time, gemologists are coming up with new one's all the time that have possibly been on the planet since the planet was formed, they are only new to us because of recent discovery.
there are so many kind of rocks its imposssible to count them all
9,897,000,078
black people are cool
561
80000000000000000000000000000000000000
7.1 Stones
11.32 stones
8.50354 stones.
13.7 stones
13.53 stones.
107.5kg = 16.928 stones
11.8104783 stones
8.66 stones
It depends on how big or small the stones are. There are no agreed boundaries separating pebbles from stones, and stones from boulders.
39 kgs in stones is approximately 6.14 stones
121 pounds = 8.64285714 stones 121 kilograms = 19.0542384 stones
1 kilogram = 0.157473044 stones 80 kilograms = 12.59784352 stones