There are colours in quartz, there are colours from quartz and there are colours through quartz.
The colours in quartz come from included and lattice bound elements such as iron, aluminium or phosphorous.
The colours from quartz come from optical effects such as refraction and scattering.
The colours though quartz come the object and light around it.
This particular crystal, full of inclusions and chips and other flaws is for the most part colourless, it’s apparent colours coming from optical effects and the light around it.
Photo: Robert Rath, ‘Day 761, Quartz Colour’ 1/50s f/11 ISO100 100mm