A Yowah nut is a type of opal found in the Yowah region of Queensland, Australia. It is a small, round, dark-colored stone with a high percentage of water content. The name “Yowah nut” comes from the Aboriginal word for “opal”, which is “yowa”.Yowah nuts are found in a type of rock known as ironstone. This rock is very hard and difficult to break, which makes it difficult to extract the nuts from it. The nuts are usually found near the surface of the ironstone, where they have been exposed by erosion.Yowah nuts are prized for their unique appearance and color. They are often used in jewelry and other decorative items.