Citron vs Chrysoprase

Citron, often called Lemon Chrysoprase, is not Chrysoprase at all! While the colors are somewhat
similar, and they both DO contain nickel, that is where the commonality stops.

This began in the marketing, trade name industry and as often happens, is passed down from miner to
wholesaler to retail vendors and shop keeps. Let’s look at both and compare.

Citron Chrysoprase/Lemon Chrysoprase/Citron–NOT Chrysoprase

This is “Lemon Chrysoprase” also called “Citron or Citron Chrysoprase”. It is more accurately identified
as a nickle rich variety of Magnesite.

Chrysoprase, the REAL Stuff

This is a true Chrysoprase. Chrysoprase is an apple-green variety of Chalcedony which is a variety of
Quartz. Its Green color is caused by microscopic inclusions of silicates with Nickel bearing layers.

Summary

So, as you can see, there are similarities, as both are colored by Nickle. But the Chemical Formulas, the
hardness, and the groups of which they are a member are all very different.

If you know me, you know I am a purist. So while this is “just a name” it is a confusing one, especially if
you are specifically looking for a Chrysoprase and end up getting a Carbonate instead.

References:

• Gemdat.org
• Mindat.org