What synthetic?

[mickey]

I found some synthetic rough in my box and cut this stone. It's very dark so I cut it shallow to allow more light. It's green under fluorescent lighting, green with red flash in sunlight, and a reddish-purple under incandescent lighting. Anybody have any idea what type of synthetic this might be?

Sunlight


Incandescent light

[rockncajun]

I don't have a clue but very nice!

[PaulF]

Nice jutting job, it doesn't sound or look like colour change Cubic Zirconia or colour change Sapphire (Corundum) the only possible synthetic colour change that I can think of that is farely dark is Synthetic Alexandrite (the rough is more expensive than most other synth's)
Hope this may help, I wish I could find unknown bits of material in my rough's container!!

[mickey]

Paul,
Thanks for the info.