It's a confusing matter to say whether it's agate, jasper or chalcedony. To be easy to judge, agate and chalcedony is almost the same, translucent - while jasper is opaque. Nevertheles, all this kind of stones from Indonesia are beautiful. Whether the soothing calm purple color of chalcedony, amazing banding of agate or the picturesque agate form of jasper - all will intrigue you.
Metaphysical : same as agatized fossil coral.