[Looking for] Cape Verde Islands gemstone

I met the wife of a newly married couple last weekend; they want to
have some interesting rings made with gems from their respective
homelands. Do any of you know if there are any gemstones native to
the Cape Verde Islands?

Thanks for your help!

Jim Small
Small Wonders

I don’t know of any gems from Cape Verde Islands but verde means
green in spanish so why not emerald or green tourmaline.

Regards J Morley Coyote Ridge Studio