Welcome to the IGS Forums! Please note that you'll need to create an account to participate in these forums. Please read our brief Forum Rules and Etiquette.
Show More Information
Forums Home » Reply To: Yellow spinel?

Reply To: Yellow spinel?

Profile photo of gemguy

Hey Steve –

Interesting…. just from the picture, that looks to me like beryllium treated corundum (sapphire). When they heat sapphire with Be, it reduces or eliminates any blue tones. This orangy-yellow hue looks almost exactly like most of the Be sapphires I’ve seen. Typically they take subtle/weak yellow or greenish-yellow gems, heat them with Be, and this is a typical result.

So my money is on it being a beryllium treated sapphire, not a spinel. Who is appraising/ID-ing it?

As an aside, I wrote about a case of mis-identification of sapphire as spinel pretty recently in this article. It’s a common mistake that, in that case, worked in my favor 🙂

Take your love of gemstones
To a New Level
Search in radius 25 miles

eNews Signup

Skip to toolbar