Black Onyx 25mm Heart

Black Onyx 25mm Heart

Black Onyx 25mm Heart: a black onyx crystal heart. Black onyx is a black chalcedony prized for its deep, glossy color. A polished heart is a classic gift and altar piece, and it sits comfortably in the hand or a pocket.

What makes it special

• Stone: black onyx.
• Shape: crystal heart.
• Size: 25 mm (as listed).
• Sold individually: the photo is a reference; each natural stone varies in color, pattern, and size.

Specifications

• Stone: black onyx
• Shape: crystal heart
• Size: 25 mm
• SKU: Y310

Traditionally, black onyx is associated with strength, focus, and protection. This reflects spiritual tradition, not a medical claim.

Looking for more? Browse our crystal hearts or explore all crystals.

In store and online

This crystal heart is sold online and through our Union Square shop at 2 West 14th Street, NYC. Call 212-645-0141 to confirm it is in the store before making the trip.

Frequently asked questions

Can I buy black onyx crystal hearts near Union Square?

Yes. Visit Namaste Bookshop, 2 West 14th Street, New York, NY 10011, a few steps from Union Square, or order online. Call 212-645-0141 to confirm this item is in the shop.

Why do people collect black onyx?

Many people keep it on an altar or give it as a gift. In crystal traditions, black onyx is associated with strength, focus, and protection. These are spiritual beliefs, not medical claims.

Can black onyx go in water?

Rinse black onyx briefly under lukewarm water and pat it dry; many people also cleanse crystals with incense or sage smoke, the sound of a singing bowl, or moonlight.