Agate

Among the books, decks, and stones on 14th Street is this crystal: Agate (shop SKU AGATE850).

Agate is a banded form of chalcedony, a microcrystalline quartz, and takes a polish well. Patterns and colors vary widely from piece to piece.

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. Agate. A crystal or stone item matching the material, shape, and origin stated in the product title.

• SKU: AGATE850

Visit Namaste Bookshop at 2 West 14th Street, just west of Fifth Avenue near Union Square, or order online.