FLAME AURA quartz: is quartz that has been treated with titanium and niobium, resulting in the traditional Flame Aura crystals having a rainbow coloured appearance, with shades of gold, magenta, green and aqua-blue being prominent. This is quite a forceful stone with a vibrancy and power that is very "awakening" and energising. Titanium is a great connector, and as such this crystal has great uses in journeying and connecting with Higher Guidance through meditation. It also carries the Rainbow Rays, which can help balance and charge each energy centre and indeed the auric field - try laying in a "Star of David" grid of 6 of these crystals, preferably double-terminated, otherwise points-in.
There are also now other forms of Flame Aura that have been exposed to the metals at different temperatures and pressures, resulting in different colours and energies: Heart Flame Aura is predominantly gold and deep pink, producing a stone that is excellent for working at the Highest levels of the heart and high-heart chakras; Midnight Sun Aura is a deep golden colour, with aspects of deep blue and magenta. As such, it has a depth that promotes working with the deepest and darkest parts of the shadow-self, to enable them to be addressed with the Highest Divine Wisdom, and thus be more easily accepted and assimilated into your self-identity.