Dioptase Natural Specimens with Display Card

Dioptase Natural Specimens with Display Card (shop SKU NDOP7) is offered as a mineral specimen online and at the bookshop on West 14th Street.

Dioptase is a copper cyclosilicate, known for its vivid emerald-green crystals, and is often found in arid copper deposits. It is relatively brittle and should be handled gently. In crystal traditions, dioptase is associated with the heart. Those ideas belong to folklore and personal practice, not to any medical claim.

It comes with a display card. 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: NDOP7

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.