Quartz

This crystal is listed as Quartz (shop SKU QW89), and is sold at Namaste Bookshop near Union Square.

Quartz is crystalline silica, a hard, durable mineral found in many colors and habits. In crystal traditions, quartz is often associated with clarity. Those ideas belong to folklore and personal practice, not to any medical claim.

Natural stones vary in color, clarity, and shape, so the piece you receive will have its own character even when the weight, grade, or size is listed.

• SKU: QW89

Find it at Namaste Bookshop, 2 West 14th Street, a short walk from Union Square in Manhattan, or order it online.