Really hard to tell from photos, but they don't look like amber to me. They look more like chalcedony, which the jasper or tiger eye would both be considered. The occasional banding would be an anomaly for amber but common in chalcedony. Some low-grade amber has the big sections that are not transparent, but one would expect more clarity and discoid and organic inclusions for amber.
There MAY be evidence of dye. It looks like there are color concentrations in some fissures towards the surfaces.
Amber is also not nearly as hard. It would be a little warmer to the touch. It would "clack" when you flick it with a fingernail where something harder like chalcedony will "click" when you flick it. Amber will also take a polish with jewelers' polishing compound Fabulustre or normal white polishing rouge.
