RUBYCA Pyrite Natural Gemstone Beads The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulphide, is considered the most common of the sulfide minerals. Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brassand Brazil, primarily used to refer to pyrite found in coal. RUBYCA Natural Beads are Perfect fully drilled and can be used for any jewelry making, arts, crafts, embellishments, Christmas Ornaments, Wedding, Party Decorations or another DIY Project you have in mind, just use your imagination!Gemstone Jewelry Care and Cleaning: Gemstones can be cleaned very easily using warm soapy water and a soft brush. Keeping in mind about the stone's hardness and durability, be sure to not use any other objects that are harder than it for scrubbing or cleaning. As with most gemstones, you should not use any household chemicals when caring or cleaning your beads and should avoid any prolonged exposure to extreme of heat as it may cause permanent damage to the gemstone. Your natural Gemstone Beads should be kept away from other gemstones and jewelry to ensure unnecessary damage or scratching from other harder gemstones.