Aqua Aura Quartz Cluster Point Claw Set Sterling Silver Pendant

Among the books, decks, and stones on 14th Street is this pendant: Aqua Aura Quartz Cluster Point Claw Set Sterling Silver Pendant (shop SKU SBAQAQP98A).

Aqua aura is natural quartz bonded with gold in a vapor-treatment process, which gives a bright blue, iridescent surface. It is treated quartz, not a naturally blue crystal. Sterling silver is 92.5% silver, often stamped .925; like all silver, it can tarnish over time and can be brightened with a soft polishing cloth.

Because the material is natural, its color and pattern vary from piece to piece. The title describes a claw (prong) setting that holds the stone. Store jewelry dry and away from lotions, perfume, and harsh cleaners to keep it looking its best.

• SKU: SBAQAQP98A

Look for it at Namaste Bookshop, 2 West 14th Street near Union Square, or order from the shop online.