06/07/2017
Amber - a mineral of organic origin, dull, transparent and translucent rocks, formed from ancient petrified resin of coniferous trees that grew 30-120 million years ago. The chemical composition of the amber - macromolecular organic acids, which are dominated succinic acid HOOC (CH <2) 2SOON also carbon, hydrogen, oxygen. In addition, small amounts of sulfur 0.1 -..