This product is a collection of natural red corundum gemstone mineral rough crystals, measuring 20-40mm in size and weighing around 15-20g. The crystals are unpolished and in their natural shape, making them ideal for collectors of minerals and crystals. The vibrant red colour of the corundum gemstones adds a unique and attractive element to any collection. Please Note: Colour, size, and shape will vary. Note: An Ultraviolet Light/torch (UV) is required to see the glow from the stone.
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