- Genuine mother of pearl, quartzite and agate necklace - Stones of different shapes and sizes - Made with high strength cord to resist breakage - All metals are IP plated stainless steel - Lobster clasp closure with extender - Hypoallergenic Dimension: - Length: 30" (76cm) POSH - Everyone, Everywhere, Every Occasion! Mother of Pearl (MOP) is a beautiful, natural, smooth shining iridescent material that can be cut and carved into ornamental shapes. Quartzite is a gemstone that was once Quartz but mother nature has heated it to such extreme temperatures it’s been reforged into an even stronger gemstone! Quartzite also serves as a wonderful canvas as it can be enhanced to be a multitude of colors. Agate is a gemstone that has been adored since ancient times. It is especially beloved for its strong, smooth surface that can be cut into amazing shapes of all sizes.