Hardness: 7
Birthstone: November
Anniversary: 13th and 17th citrine crystal

It’s quartz.
Specifically, it’s quartz that’s got a bit hot under the collar.

It seems that if you heat Smoky quartz or amethysts then they take on a yellowish hue. the depth of the colour depends both on the colour of the crystal that you start with and the degree of heat that’s applied and so the citrines that you’ll find on the market range from pale yellows to deep vibrant browns. The mid range are known as ‘golden citrines’ and these mimic the better topazes.

Because of this, citrine has often been used as a cheaper substitute for topaz. Large citrines were set in many prized pieces from the Art Deco period between World Wars I and II, including the massive and elaborate Deco-inspired jewelry made for Hollywood stars like Greta Garbo and Joan Crawford in the 1930s. The relative cheapness of the material makes it a perfect choice for this sort of overstatement.

There are very few naturally occurring deposits of citrine and it seems likely that these to are amethysts that have been naturally heated by nearby geothermal activity. All the material that you’ll find on the markets will have started off as low grade amethyst, mostly mined in Brazil, that has been heated artificially.

An amethyst that has been heated in this way can be returned to it’s original hue by exposing it to beta radiation and so a stone known as the ametrine has been been developed which is half citrine and half amethyst. It’s not everyone’s cup of tea but if it’s done subtly and with a heavily facetted stone the effect can be quite stunning.

Ametrines are generally cut either as ovals, baguettes or emerald-cuts. This is because the long, thin profile of these cuts allows the graduations between the different colours to be more obvious.

Here comes the scientific bit:

In my research I found out all kids of interesting things about citrine. Here’s an example:

“Citrine carries the healing properties of the sun.
It expands the auric field, filling it with light and clearing away any lingering etheric toxins.
Citrine is also a wonderful manifestation crystal by motivating you into taking action.
It brings optimism and cheerfulness.”

Seeing as I have a large store of citrines waiting in my stone tray, I am cheerfully optimistic that you will buy one of the pieces featured in the thumbnails below and I hope that it has the appropriate effect on you when you wear it.