Jade, Amber Purple, Aqua, Cobalt, Sky Blue, Black, White, and Clear are made of borosilicate glass. Ocean Blue and Emerald are made of soda lime glass.
Amber purple in smaller sizes like 18g, 16g and 14g are going to be a transparent yellow/amber color.
The average size of the disk is:
18g: 3mm
16g: 3.2mm
14g: 3.75mm
12g: 4mm