Amber is not just an ordinary gemstone; it's actually a bio-crystal. Bio means "life" and crystal refers to its formation in fossilized tree sap. Sometimes insects or leaves can be trapped inside of amber, and whatever you choose for your stone is known to bring good energy into life when wearing it during these cold winter months because this type brings warmth along with sunshine brightness which makes everything seem brighter from within.
Tumbled stones are smaller pieces of crystals or rocks that have been processed in a rock tumbler with water, sand, and grit. Over weeks in a tumbler, the stone edges and surfaces become smooth and sometimes highly polished to bring out the beauty of the stone. The pleasing shape and size of tumbled stones make them desirable as more inexpensive and usable crystals.