Citrine is

Citrine is one of the most popular gemstones in the quartz group. Prized for its excellent transparency, citrine is one of November’s birthstones. Naturally, it occurs in close proximity to amethyst and is found in beautiful golden, mandarin orange and madeira red hues. It’s possible that quartz crystals that grew naturally as amethyst or smoky quartz were turned into citrine by natural heat from nearby magma activity. Today, many of the citrines on the market are actually heated am