Sardonyx Tumble

Polished Sardonyx tumbled stones with a high-gloss finish and a wide natural colour range. Sardonyx is a banded variety of Onyx (Chalcedony) featuring alternating layers of Sard (warm red-brown to amber) and white, grey, or black Onyx bands. This batch displays significant colour variation between pieces — ranging from deep red-brown and near-black through to amber-yellow, grey, cream, and mottled green-grey. Each stone is unique. Sold per stone, approximately 2–3cm.

Sardonyx has been used as a gemstone and carving material since antiquity, prized for its bold banding and warm earthy tones. It is a microcrystalline Quartz (Chalcedony) variety, with the red-brown colour caused by iron oxide inclusions.

Stone Details

• Mineral: Sardonyx (banded Chalcedony / Onyx variety)
• Form: Tumbled, polished
• Size: Approximately 2–3cm per stone
• Colour: Wide variation — deep red-brown, near-black, amber, grey, cream, and mottled tones
• Finish: High-gloss polished
• Sold: Per stone — colour and banding will vary significantly between pieces

Due to the natural colour variation in this material, the stone you receive may differ considerably from others shown. Each piece is a genuine natural specimen.