Here you may find gemstone hearts, star beads, gemstone toggle clasps and more. Plus gemstone skull beads... lots of and lots of gemstone skulls! Most fun shaped gemstone beads like these on the market today are molded from hematine or/ reconstituted (block) magnesite. Hematine is man-made hematite. Like mined hematite, it's heavy and metallic, but manmade hematine can be molded into complex shapes. And since it doesn't have any impurities, it can be electroplated with intense, durable coatings! Magnesite is lighter, so if you're looking for large, colorful skull beads, magnesite is an excellent choice. Magnesite is naturally a chalky, porous stone, so you'll often find magnesite dyed to match fashion colors of the year, with creative "new gemstone" names. Do your research -- vividly-colored lightweight gemstones or cheap turquoise are often dyed magnesite. To mold it into complex shapes, first it's crushed, then mixed with colored binders (resins) and pressed into molds.