Question

What are the scales of the fish made up of? can they be utilised to make fibre or fabric?

Answer 1

Fish scales are divided into three layers; the innermost layer of which consists of lamellar bone which is lined by a layer of spongy bone and on top of it a layer of dentine like material is present known as cosmine. The upper surface of the scale is composed of keratin.
No, they cannot be used to make fabric.