There are quite a few gemstones that can be yellow in color. Citrine is probably the most well known yellow gemstone on the market today. There is also yellow diamonds, yellow labradorite, bytownite, yellow tourmaline, yellow beryl, lemon quartz, as well as yellow jade, pearls, and I am sure there are others. Yellow very often signifies warmth, compassion, and friendship. It is one of the loveliest colors of gemstones.
Gemstone collecting has been fun for my kids as well. They look at them under the microscope, and with the loupe. They are fascinated by the many different varieties that Mother Nature provides each, and every day. I am starting to learn to identify my stones. Some I know what they are because they were bought already identified. When you buy large parcels, very often you don't know for sure what they are. Learning to identify your stones is very time consuming, and you really need to practice a lot. I love it!