Opalite Beads (Opalized "Quartz") from Rings & Things.
Opalite beads are also known as moonstone quartz, opalized quartz, and sea opal. With a little research we discovered that these "gemstone" beads (along with many gemstones circulating in the market) are actually glass masquerading as natural stones. These beads are distinguishable from natural semiprecious stones by occasional, accidental bubble inclusions and a lower resistance to scratches and breakage. Nevertheless, manmade opalite is cut, faceted, and polished just like any other gemstone. Opalite beads have a cloudy center and few visible inclusions. They project a blue sheen when worn against most colors, but take on a yellowish tinge when placed next to white. Pink opalite beads display a cloudy pink color with shimmering qualities.