Crystals for red, orange and yellow

[Diana]

I use Black Obsidian for red, Carnelian for orange and Golden Topaz for yellow.

Also, there are vast lists of associations on internet even with a surface search.

I, too, have used obsidian and carnelian—both I feel are very effective. I have used topaz, and also citrin for yellow ray.

What I feel is a good way to approach crystals, gems, and rocks, is to use or go to what you are attracted to. If there are a bunch of crystals in front of you, you will be attracted to one or some, and those I think are what you need.