SMALL Amber BAT Sterling Silver Stud Earrings. Baltic amber .925 sterling silver 1/4" (H) x 0.5" (W) Lightweight Handmade in Poland Interesting facts: All amber is fossilized tree resin. Baltic amber is mined from near the Baltic Sea and contains a substance called succinic acid. Baltic Amber works on mental clarity and mood balance and boosters confidence. It helps relieve ailments of the stomach, respiratory system and lungs, endocrine system, spine, thyroid, spleen, and neurological system including the brain.