Coquille is a type of large nutshell. It is one of the most popular Islamic prayer bead materials due to its beautiful glossy appearance and unbreakable durability. Until about 10 years it was thought only to be available in West Africa (in very limited quantities) and was extremely expensive. Luckily the men of our craft have recently sourced it from South America and the cost has become much more reasonable.
One of the beautiful things about unstained Coquille nut is that it darkens with use and grows all the more beautiful. It's also known for its beautifully distinct clicking sound that some find to be very soothing.