Interesting tumbled Nuummite pieces, measuring 20-30MM approximately.
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Interesting Nuummite tumblestones, measuring 20-30MM approximately.
Nuummite is a fairly rare stone, and is not one of the more common ones typically sold as tumblestones.
It is only found in Greenland, and is one of the oldest rocks on Earth, formed around 3 billion years ago.
They make a nice display item in a bowl, or a vase, and are good contrast stones against something lighter. These stones have an interesting surface sparkle, due to crystal inclusions.
As we do not have a steady supply of these stones, we currently sell them singly.
The pictures you see here are representative of the products and are usually not the exact item you will receive. Where various grades are available we do try to photograph each grade - but some photographs are still on their way!
What are tumblestones?
Tumblestones are stones that have been put in spinning barrels with an abrasive compound for weeks or months. This slowly rounds off the rough rock and corners – the stones are then cleaned, and placed with a less abrasive grit. This happens several times until the stones are placed into a barrel with a polishing compound for their final polish.