Seeking info re Amber trade around the 9th century?

I’m interested in the history of amber and other gems etc that were popular and found in central Europe in the middle ages. For example moldavite found in the area of the not yet country of Czechia. I know the Amber Road and Amber trade moved through the Great Moravian Empire (9th century) but I’d love any assistance or shared knowledge regarding amber finds, uses, trade etc.

Thank you so much for any leads or help.

E,
AyaBeryl

Good day! I am glad to meet you, I could help you, but I myself have books in Russian in Russian. if you’re interested, I can send you, and you through a translator such as Google, can translate read.
There is also information about amber here.

Hello Sir, It is interestingly your Russian books, please could to name the books price and quantity pages? Many thanks, Alexandr

Good day! Glad to meet you) I do not sell books, I have them in electronic form, but if you also have kaike or interesting books on gemology in electronic form, then I’m ready to change / accept it as a gift)
You write me your mail, and I will send you everything that I have in amber)

Lithuania has a vig traditions with amber jewellery
Baltick see has some beautiful Amber
Till this day people after see storm goes Amber hunting
Palanga city in Lithuania has Amber Museum
Best wishes
Joy