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Salt crystals coloured pink by carotine from organisms in the water in which the crystals grew. Namibia Salt crystals coloured pink by carotine from organisms in the water in which the crystals grew. Namibia Salt crystals coloured pink by carotine from organisms in the water in which the crystals grew. Namibia Mineral deposits at the edge of hot spring. New Zealand Mineral deposits at the edge of hot spring. New Zealand