Nyrak, yes wouldn't it be great to have someone to share these things with!! Maybe one day ...
When I read about your kunzite and fluorite on the forehead my immediate feeling was "They don't go together" and then read "one keeps falling off".
That means they indeed do not work well together and if you keep putting them together they make sure themselves that they part by falling off. So don't use them together, it doesn't do you nor the crystals any good. Energies don't match at all!
Use one of them at the time, just choose. Doesn't mean you got to stick with that one for weeks, you can choose whenever you want, just listen to your intuition. Maybe in the morning the kunzite feels good, in the evening the fluorite. Feel and pay heed!
The crystal with citrine sounds wonderful!
Clusters that you can't use on your body, but put out for display, aren't just eye-catchers. They help keep the energies in the room/house high. And more, depending on their particular qualities. Some raise the energy levels other work on transforming negativity, others bring Lemurian energy and so on and so forth.
I don't have many clusters either, because I a tactile person, I want to feel and hold my crystals, which is difficult with a cluster with points.
I have a delicate Golden Lemurian Healer, and I did hold it, very carefully. Has very tiny itty bitty points, but also larger ones, largest is approx. 6". Then suddenly a piece broke off, meaning all the surrounding points got wobbly too. I had a choice, risk the entire cluster would fall apart in time, or glue the one that came loose back in. I chose the latter. Little tiny bit of glue to save the cluster. It was what the cluster wanted as well, it didn't want to come apart.
Anyways, I don't like posting pictures of my crystals online, because that way everyone can tune into them and drain their energy.
But I found that the pyrite with Wagnerite and Triplite can be found when Googleing "Wagnerite". No idea why they went for that name in English, as Wagnerite is the black part and most of it is salmon --> Triplite.
This is an example, so you got a bit of an idea :)
Pink tourmaline in Aquamarine
Yellow/honey opal from Tanzania:
Pyrite with Wagnerite and Triplite:
Mine is peculiar, as it's 2" x 1/2" approx. and one end is wagnerite & pyrite (so darkish), the other half is triplite, so salmon coloured.
So in a way I can use it as a small healing wand and choose which energy I want to emanate from it.