Freshwater pearls come from mussels, saltwater pearls come from oysters.There are four main types of cultured pearls, Freshwater pearls, Akoya pearls, Tahitian pearls and South Sea pearls. Freshwater pearls are the most readily available and least costly pearls.
Online PR News â 14-October-2011 â â Sterling, Va. â Carbon Black, Inc. announced today the release of its namesake software product, Carbon Black Enterprise, a resource-friendly security sensor designed to provide IT professionals with elemental insight into where and when a security incident has occurred in their enterprise.
The main use of carbon black is in the industry of automobile tires, as a pigment. In Europe, carbon black of vegetable origin is used as a food coloring. The current production of carbon black is 18 billion pounds per year, from which 90% it is used in rubber applications. Cost and Price Reference Series.