A popular variety of the quartz gem family, Citrine is very recognisable for its pale yellow colouring. Almost identical in composition, a citrine is extremely similar to another quartz, Amethyst, with the only differing attribute is the rate of oxidisation of their iron impurities during its formation. Due to the obvious connotations of it's hue, citrines symbolise the sun, warmth, energy and life and were particularly popular during the postwar Art Deco period in the form of large impactful stones - however has been used for decoration for thousands of years, and even mentioned in the Bible.