These are slices of labradorite. Labradorite is a plagioclase feldspar, made up of sodium, calcium and aluminum. It has plechorism (shining) properties which makes these pieces glow. I like wearing stone on skin, frequencies merging.
Because these are small unique pieces, every one will differ slightly. The biggest pieces are approx. 1/2 inch in diameter, the smallest about 1/4 inch in diameter. The photo below with 2 necklaces in it shows one of the big size and one of the small size.
I will try to accommodate requests if you leave them at checkout. All pieces have wonderful glowing, big or small. Some are more yellow, others are more green, others more blue.
Labradorite + 14/20 gold-fill. 16-18 inches, adjustable