Green Obsidian Andara Glass

Among the books, decks, and stones on 14th Street is this crystal: Green Obsidian Andara Glass (shop SKU VGOR14).

Andara is a trade name used on this listing for a glass or obsidian-glass specimen, as stated in the title. It is sold as a decorative or collector piece rather than as a formally identified mineral species. In crystal traditions, Andara glass is associated with a sense of light or 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: VGOR14

You can see this one in person at Namaste Bookshop, 2 West 14th Street near Union Square in New York City, or order it online.