Potassium,

A very colorful hotspring near the Grand Prismatic Spring in Yellowstone Nationalpark. The colors result from dispersed silica (blue/green) which refract the sunlight. The warmer colors are small organisms (thermophiles) which live in hot springs and are colorful to absorb the sunlight. From those thermophiles the first enzymes for RNA/DNA analysis have been found. Also this was the cornerstone to our COVID vaccines today.


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