Plant it to grow Fossil Brush. You can use this to gently brush a fossil before you pick it up, improving its quality. A Fossil Brush will be destroyed upon use (fossils are very rough until you brush them!). If you pick up a fossil, your finger oils will make a Fossil Brush useless, so be sure you brush before collecting!
Fossil Brush Seed price in Growtopia: sells for about 2 WL (median of 16 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: TASCQ, TNJTS, BITAN, PLPLPL