Precious Trendy Jewelries for 2022   Image Credit: Photo by Juan Burgos on Unsplash A gemstone is a chunk of mineral (or other rock or organic substance) that has been cut and polished into jewellery or another item after it has been cut and polished. Although minerals are usually used to make gemstones, other materials such as jet or amber, as well as rocks such as lapis lazuli, can also be used. The bulk of gemstones are hard to the touch, although some soft minerals may be used depending on the piece of jewellery being manufactured. Shungite Necklace Shungite is a rare black stone with carbon up to 99%. It was…