Subject: what is fiberoptic glass and how is it made

I have found several articles describing what fiberoptic glass is in the form 
of the single strands used for technology.  However, I am trying to find out 
how the large, decorative pieces are made.  For instance, I have a bracelet 
made of "cat's eye" beads and an egg shaped piece of glass (1"x2") that are 
both referred to as fiberoptic glass.  The information I have found on 
fiberoptics discuss the thin wires used for transmitting light.  They do not 
explain how these very large versions are created.  Are many strands melted 
together to create such a large piece and then cut into the shapes I have?
Thank you for your time.
(PS- my big sister wrote this for me)

Re: what is fiberoptic glass and how is it made