I want to talk about some of gemstones Kate frequently wears. Today I’ll be talking about green amethyst.
Interestingly enough, green amethyst is not amethyst at all. How odd that it’s called so, right?
The actual name for it is prasiolite. Prasiolite can be created by heating quartz until it changes to a soft light green color. It can also be heated to create a darker shade of green. Some prasiolite is known to be synthetic because it resembles a deeper green shade (such as mint or kelly green). Most of the prasiolite on the market is heat treated.
Prasiolite can be naturally occurring. It is found in a mine in Brazil, and not so long ago prasiolite was discovered in Poland. However, it is rare to find it as the leek green color we see in Kate’s earrings. Therefore, most prasiolite we see in jewelry is heat treated.
Prasiolite is commercially marketed as green amethyst because jewelers want to boost interest in the gemstone. It is easier to do this by associating it with a more commonly known gemstone. So this is why it is called green amethyst (despite not being actual amethyst).
The word “prasiolite” comes from the Greek words “prason” and “lithos” and means “leek stone”.
Kate’s prasiolite pieces: