Be sure to empty the water and matrix that's left outside where it won't harm anything. When you find your gemstones get a small 2 AA battery flashlight and hold the gemstones on top of the light to see the flash of color in them. Clean your gemstones with a toothbrush. Do not use ultra sonic jewelry cleaners. These can damage some gemstones.
Inclusions are small fragments of foreign matter found in gemstones.
These are normal, flawless gemstones are rare. Expect to find some types of gemstones to have inclusions that are acceptable. Go to your local bookstore and get a good book on gems and minerals to help identify the different kinds.