Angel/aura quartz, is a stone that can give you a lot of confidence and self-healing power.
It makes just like the Selenite the communication with angels much more easier
and radiates peace and positivity.
Using this stone with other crystals is not a problem it can be combined with a lot of other crystals without feeling the energy mixed in a wrong way.

Also when you find yourself in a karmic situation, this stone can help, not that the issue will go away but will help to deal with it and make it go away much quicker than it would do without.
I have one of these myself but in orange and I really can say this stone really does work even if it is a small one. I find compared to other crystals the aura quartz different in a unique way, if you have the opportunity to have/hold one you mabey know what I mean.

These stones are in manny colours : white, orange, matalic and rainbow.