Green Banded Malachite Tumbled Semi-Precious Collectible Gemstones

Malachite is a copper carbonate mineral that comes in various shades of green, often banded or patterned. Malachite is a popular gemstone that has been used for thousands of years. Generally opaque, it has a low hardness but take polish well and does not fade. Tumblestones or "tumbled stones" as they are also called are made by "tumbling" rough crystals in grit for a number of days in a giant tumbler machine. As time passes, finer and finer grit is used until the edges are smoothed and the crystals start to become polished. In the end they end up beautifully smooth. Due to the tumbling process, each stone will be unique in shape, size and colour. Approximate Size: 10-20mm SOLD AS SINGLE STONES