Black Onyx Puffy Heart
Black onyx is a natural chalcedony (quartz) variety traditionally associated with strength and grounding. This substantial puffy heart is about 2.5 inches across, with a deep, glossy black finish that feels wonderful in the hand. Note: black onyx is commonly color-enhanced (dyed) to achieve its deep, uniform black.
Quick facts
| Stone | Black onyx |
| Composition | Chalcedony (microcrystalline quartz), silicon dioxide |
| Hardness (Mohs) | ~7 |
| Color | Deep black (commonly dyed for uniform color) |
| Origin | Brazil, India, and other sources |
| Chakra | Root |
| Traditionally used for | Strength, self-mastery, protection and grounding |
| Care / Water-safe | Durable; minimize soaking since color is commonly dyed |
Meaning & history
In crystal tradition, black onyx is a grounding stone of strength and self-mastery — many people work with it for steadiness, focus, and confidence, and for a sense of protection and grounding. Its calm, centering presence makes it a natural anchor for balance and wellness, and the heart shape adds a gentle, loving focus for meditation or display. See more in our black onyx collection.
How to use it
This heart works well as a pocket piece, meditation tool, or display item on a shelf or altar. Each heart is carved from natural stone, so tone and polish are unique to your piece.
Care & cleansing
Black onyx is a hard, durable quartz variety, but note that black onyx is commonly dyed to achieve its deep black color, so it's best to minimize prolonged soaking, which can fade or unevenly wear the color over time. A quick rinse and thorough dry is fine; cleanse energetically with sound or moonlight for a gentler option.
Frequently asked questions
What is the Black Onyx Puffy Heart?
It's a substantial puffy heart, about 2.5 inches across, polished from black onyx — a natural chalcedony (quartz) variety. Black onyx is commonly color-enhanced (dyed) to achieve a deep, uniform black. This is a decorative/symbolic piece, not a health product or medical device.
Is black onyx safe to get wet?
Brief water contact is generally fine since onyx is a hard, durable quartz variety, but because black onyx is commonly dyed, prolonged soaking can cause the color to fade or wear unevenly over time, so it's best to keep soaking to a minimum and dry it promptly.
Is this heart fine for everyday handling or display?
Yes — black onyx is quite hard and durable (about 7 on the Mohs scale), making it well suited to daily handling or display, though like any polished stone it can still scratch against harder materials.
How do I cleanse and charge black onyx?
Many people cleanse black onyx with sound, moonlight, or a light rinse under cool running water followed by a thorough dry, then hold it while setting an intention for grounding or steadiness.
How can I tell if black onyx is genuine?
Genuine black onyx has a smooth, glassy luster and a deep, even black color; because natural onyx is commonly dyed to reach that uniform black, a completely flawless, jet-black surface with no banding at all is common for treated stone, so ask your seller if you want a naturally black, undyed piece.
What stones pair well with black onyx?
Black onyx pairs well with other grounding stones like black tourmaline or smoky quartz, or with rose quartz for a heart-centered balance; see our black onyx and protection and grounding collections for more options.
We ship within 1–3 business days from our Kendall, Miami location. Standard shipping takes 5–8 business days. Expedited options available at checkout.
Free standard shipping on orders over $50.
Questions? Use the Ask a Question form below or visit us in store at our Kendall location.