What type of rock/material are these?

I think the Green one is Onyx?
but what is the Orange/Red one?
Im pretty sure it isn’t Amber as im sure it would cost alot otherwise!
a friend of mine said it might even be just Glass, but seems a little weird.
http://postimage.org/image/n94gcdogj/
Answer #1
Could be Ruby
Answer #2
These are big though, well… one is 4″ and the other is 3″
I dont think its Amber or a Ruby because wouldnt they cost LOADS if they were that big?
Answer #3
Looks like glass from an old gas fire – especially at that size.
I’ve got some in the bottom of a fish tank.
Answer #4
coloured quarts.
Answer #5
Possibly almandine garnet, which is a mineral. However, it could just be glass
Answer #6
Wrong colour for amber – amber is rich golden honey colour.
It could be a number of things, it depends on where you found it.
Looks the wrong shape for ruby – could be a coloured quartz or coloured glass.
(Amber is not all that dear, depending on where you are; I have a fist sized piece of amber with a f@ck ugly insect glaring out of it.. doubt it’s worth much..