Crystals for red, orange and yellow

[Indiken]

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.

Is picture of a crystal enough or physicall presence is needed, for example to touch, to know which is right?

I tried citrine, but felt somewhat uncomfortable feeling.

Maybe there can be a difference between blockage, underactive and overactive energy centers?

I will try again citrine and black obsidian.