Is the tortoise shell walnut skin very thin?

Very thin. According to China Collection Network, the shell of hawksbill walnut is thin, 2-3mm, and the thickness will not exceed 5mm, so it is easy to be broken during transportation and storage. Walnut, also known as walnut and peach, belongs to Juglandaceae. Together with almonds, cashews and hazelnuts, it is known as the world-famous "four dried fruits".