'Solar plexus chakra is the 3rd primary chakra located in the stomach area,' Inori explained to Yuki while she meditated on a mountain top, 'it has 10 jewel stones. Transparent, white, red, orange, yellow, green, blue, indigo, violet, and black color stones.
When people just open this chakra, there will be these 10 colors of liquids. You have to use the sun's energy to make the liquids solid and form them into spheres. They need to be done one by one.
You can start with any jewel but it is best to do it on the orders as I mentioned before.
If you do it in a different order, then it will be harder with the same strength.
For example, if you directly do the green jewel, which is in the 6th place. Then to do yellow jewel, it will be 2 times harder, for orange jewel, it will be 3 times harder, for transparent it will be 6 times harder.