This is a beautiful handmade tile from the Bay Area company, Clé Tile. It was used on a project and came out beautifully. There are 100 pieces left. The color tone is called overlay.
They measure roughly 2¼" x 12" x ½". https://www.cletile.com/products/architect-s-palette-overlay?collection=architects-palette&sku=GT10007
New these tiles are $34/SF + tax and shipping. I'll do $200 for the 22 SF, which is a fraction of the original cost.
The last two photos are of the actual tile batch installed. The others are from Cle's website.