What you see here is calcite and hematite. Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3), while hematite is a mineral containing oxygen and iron (Fe2O3).
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What you see here is calcite and hematite. Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3), while hematite is a mineral containing oxygen and iron (Fe2O3).
Andrei's background is in geophysics, and he's been fascinated by it ever since he was a child. Feeling that there is a gap between scientists and the general audience, he started ZME Science -- and the results are what you see today.