Talk:Pearl Dragon/@comment-97.123.241.21-20120602231602/@comment-4775325-20120603002317

"A gemstone or gem (also called a precious or semi-precious stone, a fine gem, or jewel) is a piece of mineral, which, in cut and polished form, is used to make jewelry or other adornments.  However certain rocks (such as lapis lazuli) and organic materials (such as amber or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well."

Also a pearl (at least a true natural pearl) despite being produced in an oyster is formed entirely out of mineral. So under many definitions a Pearl is classified as being a gem.