Iona marble found on various beaches in Iona, and handmade into buttons. Brilliant for all you crafters and makers out there who want to add a bit of Iona to your creations.
Iona marble, also known as greenstone, is distinctive for the flecks of green serpentine through it. Technically considered an imperfection in the marble, it is this very thing that makes the marble found in Iona so admired.
Bought in sets of two.
(They're attached to card the size of an average business card, to help give you an idea of size!)