Can opal be recycled? If so, HOW?

Question

the rock opal

same with led.

Answer 1

If the opal you have is unsuitable for decorative purposes, it's probably not worth recycling, since it's a very common natural compound, silicon dioxide (hydrated). If it is possible to use it in jewelry, I'd think a crafts store (especially the kind devoted to beadwork) would appreciate it.
I don't know about "led". Are you referring to the metal lead or to light emitting diodes (LEDs)? When I come across metallic lead I usually save it up until there's enough to take to a recycling center that accepts metals. I doubt that LEDs can be recycled unless you have a large amount of them, in which case an electronic equipment recycling firm might be interested. (Because of the gold-plated leads if they have them.)