Why does manganese, when added to calcite, cause the mineral to turn a deep red?
A) The presence of trace constituents can affect color.
B) Manganese overpowers the calcium in calcite.
C) Manganese is formed under extremely hot conditions.
D) Manganese is red and calcium is white, making red.

Question

Quizplus · Accepted Answer

The presence of trace constituents, including manganese, can affect the color of minerals. In this case, the addition of manganese to calcite causes it to turn a deep red.

Why Does Manganese, When Added to Calcite, Cause the Mineral