Stone · 4 pieces
Citrine
Citrine is the yellow to orange variety of quartz. Natural citrine is pale; deep orange material is usually heated amethyst.
Read about Citrine
Why amethyst is purple, and what turns it yellowIron, natural radiation and heat: the science of amethyst's colour, why it can fade in sunlight, how amethyst becomes citrine, and where the name comes from.Glass, dye and heat: an honest guide to what's naturalOpalite, goldstone, cherry quartz, dyed howlite and heated citrine: which popular 'crystals' are man-made or treated, and how to tell.