Septarian Madagascar Crystal Tumbled

Among the books, decks, and stones on 14th Street is this tumbled stone: Septarian Madagascar Crystal Tumbled (shop SKU VOSET2).

Tumbled stones are polished in a drum, which softens sharp edges and brings out color. 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.

The title gives the origin as Madagascar.

Namaste Bookshop is on the south side of 14th Street, just west of Fifth Avenue, about a short walk from Union Square.

• SKU: VOSET2

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