Black Banded Agate tumbled stones, sold here as sardonyx, are loved for their bold banding and smooth polished finish. Their dark, steady look makes them a versatile choice for display, carrying, and gifting.
What Sardonyx means
In crystal traditions, sardonyx is often associated with strength, resilience, and steady determination. Many people use it when they want a grounded, disciplined energy and a sense of inner steadiness. It is also traditionally linked with protection and clear personal boundaries. Its layered look is often seen as a symbol of balance and structure.
- Origin: Brazil
- Sold by: 1/2lb Bag
Look and feel
These tumbled stones show striking bands of black, white, and deep grey with a smooth, polished surface. The finish gives each stone a clean, glossy appearance that highlights the natural banding. Origin: Brazil. This selection is not graded with an A or B label.
Sizes and stones per bag
| Size | Stone size | Stones per bag |
|---|---|---|
| Extra Small | - | about 70-125 |
| Small | - | about 30-70 |
| Medium | - | about 12-30 |
| Large | - | about 8-12 |
| Extra Large | - | about 3-7 |
Every stone is natural, so shapes, shades and counts vary from bag to bag. Counts marked about are estimated from the size and bag weight.
Ways to use and display them
- Carry in a pocket for a steady reminder
- Display in a bowl with other dark stones
- Use in crystal grids for grounded décor
- Add to desks, shelves, or gift bundles
Care
Agate is durable, but it can still scratch against harder stones, so store it separately when possible.
Crystal meanings are shared from tradition and folklore for inspiration. They are not a substitute for professional advice.
Black Banded Agate Tumbled Stones
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Stone: Sardonyx
Origin: Brazil
Sold By: 1/2lb Bag
Black Banded Agate tumbled stones, sold here as sardonyx, are loved for their bold banding and smooth polished finish. Their dark, steady look makes them a versatile choice for display, carrying, and gifting.
What Sardonyx means
In crystal traditions, sardonyx is often associated with strength, resilience, and steady determination. Many people use it when they want a grounded, disciplined energy and a sense of inner steadiness. It is also traditionally linked with protection and clear personal boundaries. Its layered look is often seen as a symbol of balance and structure.
- Origin: Brazil
- Sold by: 1/2lb Bag
Look and feel
These tumbled stones show striking bands of black, white, and deep grey with a smooth, polished surface. The finish gives each stone a clean, glossy appearance that highlights the natural banding. Origin: Brazil. This selection is not graded with an A or B label.
Sizes and stones per bag
| Size | Stone size | Stones per bag |
|---|---|---|
| Extra Small | - | about 70-125 |
| Small | - | about 30-70 |
| Medium | - | about 12-30 |
| Large | - | about 8-12 |
| Extra Large | - | about 3-7 |
Every stone is natural, so shapes, shades and counts vary from bag to bag. Counts marked about are estimated from the size and bag weight.
Ways to use and display them
- Carry in a pocket for a steady reminder
- Display in a bowl with other dark stones
- Use in crystal grids for grounded décor
- Add to desks, shelves, or gift bundles
Care
Agate is durable, but it can still scratch against harder stones, so store it separately when possible.
Crystal meanings are shared from tradition and folklore for inspiration. They are not a substitute for professional advice.
For shop owners The profit math on this bag Cost per stone, suggested shelf price and profit for every size. Tap to open.
Crunching the numbers...
How shops sell Sardonyx
- Bowl at the till. A labelled bowl by the register turns into impulse add-ons all day.
- Pick-your-own bar. Several colours side by side, one price per size, a scoop and small bags.
- Intention bags. Pair 3 stones with a meaning card and sell as a ready-made gift.
- Kids and schools. Pocket-sized, durable and affordable for rock clubs and party favours.
Build your tumbled wall
Most shops carry 12 to 30 tumbled stones. Mix sizes and colours, reorder your bestsellers, and save 10% with our themed bundles.
See all Tumbled Stones → Tumbled stone bundles (save 10%) →More Sardonyx products →Save 10% with a tumbled bundle
Ready-made sets by chakra, intention, colour and size. Every bundle is 10% off the bags bought separately.
"New website features more sorting options that are a huge help in simplifying my ordering process. The images are accurate reps of quality and look and size is often given with a comparison item (coin). I very much appreciate the write-ups for traditional and modern benefits and properties of each stone including the very lovely stone meaning cards (really appreciate the new cards use of colour, graphics, and write-ups" - Christine F.
"love going into the store because everyone is so friendly. This time I ordered on a live sale because the item I was looking for was a great price. There was an issue when my order arrived but I reached out and the response was very quick with amazingly resolution. Customer service was perfect!" - MG
"Everytime I shop online, it's always a smooth and quick process. They have authentic crystals and rocks. Always love my purchases. The staff is awesome too!" - Neveen K.