Dear J, Thank you for your inquiry.
Here is the list of crystals that can work with the energy of a brain tumor*:
I would suggest infusing the crystals with your intention. When resting, please place the Danburite on the head. Carry the other crystals with you and if you can make a grid with the Amethystand Smokey Quartz to increase the vibes in your home with your intention.
I hope that these recommendations can be of assistance and that crystals grace your journey with love and light.
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*Disclaimer – Crystals are not a medical treatment and should not be used as a replacement for medical care. Please consult your healthcare specialist for your particular needs.