https://en.wikipedia.org › wiki › Amber
Amber is used in jewelry and as a healing agent in folk medicine. There are five classes of amber, defined on the basis of their …
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https://www.britannica.com › science › amber
3 июл. 2026 г. · Amber, fossil tree resin that has achieved a stable state through loss of volatile constituents and chemical change …
https://simple.wikipedia.org › wiki › Amber
Resin from the extinct tree Hymenaea protera is the source of Dominican amber and probably of most amber found in the …
https://www.gemrockauctions.com › learn › a-z-of-gemstones › amber-information
30 янв. 2026 г. · Amber is an ancient fossilized tree resin, often with plants inside, that’s usually yellow-orange and dates …
