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The Rarest Pigment in the World | Colour the Spectrum of Science | BBC Science

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Lapis blue rocks are equivalent to the price of gold and can mainly be in the mountains of Afghanistan. The unique combination of sulphur with other elements produces this deep rich blue we call ultramarine. Best of Earth Science: Best of BBC Earth: Taken from Colour the Spectrum of Science. This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback:

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