Bone china for everyday dining? Fortessa is changing the rules with their creamy white collection that boasts amazing strength despite its delicate look and feel. Versatile and classic, bone china boasts a translucent white appearance that complements a wide variety of décor styles. Fortessa’s bone china contains 44% calcium phosphate, making it extremely durable yet exquisitely light. This set of four is exclusive to Sur La Table, resistant to chipping and staining, and can be cleaned in the dishwasher, making it ideal for everyday use..