Linked from
The 14 pages that link to Amber, each with the reason it gives.
FossilBroader topic: Resin can preserve delicate bodies in three dimensions, including insects.
GemstoneBroader topic: It shows that gemstone materials need not be minerals or rocks.
Plant resinBroader topic: Long-term burial and chemical change can transform resin into amber.
AntaresBroader topic: AMBER observations mapped gas motions in Antares's atmosphere.