Black Obsidian Polished Cube Tumblestone - Natural Stone
✔ Genuine natural stone
✔ Handmade in the UK
✔ Free UK delivery over £30
✔ Easy 30-day returns
Natural polished tumbled cubes of Black Obsidian , glossy jet-black volcanic glass with a smooth, mirror-like finish , tumbled smooth from rough rock.
About these stones
Black Obsidian. A naturally occurring volcanic glass, formed when lava cools rapidly without crystallising. Known for its deep jet-black colour and high-gloss, reflective polish.
Details
- Form: Polished tumbled cubes
- Size: Choose 9 to 13 grams, or 17 to 20 grams, varies naturally
- Stones: Black Obsidian
- Origin: Naturally sourced rough rock, hand-polished
Each tumblestone is unique , natural variations in colour, shape, size and pattern are part of the character of working with real minerals.
Care
Keep dry and avoid harsh chemicals. As a natural glass, handle with care to avoid chips on edges and corners. Store in a soft pouch or padded compartment to protect the polished surface. Wipe with a soft dry cloth if needed.
Sold as a decorative item. We make no medical, therapeutic or other claims about the stones. Read our full disclaimer.

