whats the good way for dye quartz crystals
Due to it very nature; a translucent crystal, slight changes in the electromagnetic spectrum will cause quartz to admit a variety of differing colors. These changes may not be visable with the naked eye however will cause the quartz to change in color. I would of thought that changes in the upper red and infra red spectrum may cause the rose coloration to become more or less vibrant to the eye. Hope this helps.
What you have is pink quartz. It is sensitve to light, and will fade if exposed.