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.
Since the mid-1970s, most carbon black has been produced by the oil furnace process, which is most often referred to as furnace black. Two carbon black manufacturing processes (furnace black and thermal black) produce nearly all of the world's carbon blacks, with the furnace black process being the most common.