Amethyst Is a very popular crystal quartz stone. Amethyst is considered to be a stone of spirituality and contentment. It can help raise a lower vibration energy to a higher one.
Amber Ibarreche Gemz (I find it a bit hard to believe she actually draw these stones... possible, sure, but she seems to be a collage artist, so this could be images cut from an old book of minerals, or a school board or something like that. Old fact book illustration. But, sure, it's possible she made it.)