Crystal, There are two basic kinds of crystal - rock crystal and man-made. Rock crystal, the common name for the silicate mineral, quartz, which is a semi- precious stone that occurs in nature. Man-made crystal is produced from a mixture of quartz and, soda, potash, and lead oxide. Swarovski is a man-made crystal. Oddly enough, rock crystal has nowhere near the color or brilliance of manufactured crystal.The color of each beads are stochastic select. You'll receive similar items as the pic shows. Multicolor Crystal Glass Faceted MIXED loose beads fit for CHARM 20pcs. Beads size is approx. 9x14mm. Inner diameter of the core is about 5mm, 37 grams.sku# zpa0143
ship to New York,United States
