Breccia!

This rock appears to be a type of polished breccia, specifically a type known as "Leopard Skin Jasper" or "Leopard Jasper" due to its distinctive pattern. This stone is characterized by its orange or reddish base color with black or dark brown inclusions that resemble the spots of a leopard. It's a type of jasper, which is a variety of chalcedony, and is often used in decorative items and jewelry for its unique appearance.