Examlex
List the characteristics of the Archaea, Bacteria, and Eukarya and identify examples for each.
Calcite
A common naturally occurring calcium carbonate mineral, often found in sedimentary rocks, and the primary mineral that makes up limestone.
Chemical Elements
Substances that cannot be broken down into simpler substances by chemical means, and are defined by the number of protons in their atomic nuclei.
Reddish Streak
The color mark left by a mineral when it is dragged across an unglazed porcelain plate.
Hematite
An iron oxide mineral that is one of the main ores of iron, recognized by its reddish-brown color.
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