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2.5 billion-year-old ruby contains evidence of ancient life in carbon
Hypothesis People who play Minecraft can identify Minecraft ores and real life ores better than people who don't play Minecraft. Real Life Ores Minecraft. - ppt download
Clue to Ancient Life Found in 2.5 Billion-year-old Ruby in Greenland - News18
Natural, Synthetic, or Imitation? How to Tell If a Ruby is Real