On this hexagonal Calcite specimen, the Calcite has altered to an unidentified pink colored material just above the boundary of the Chalcopyrite. This may not actually be an alteration but a case where the Calcite is colored with an impurity. In either case, I have never seen a similar specimen from the location. However, there have been similar hexagonal Calcite crystals with a layer of green material at the base which is usually attributed to being Malachite. The rest of the Calcite specimen is translucent and has a good glossy luster.
Condition: Very Good
Flaws: There are a few very small chips on the edges of the termination.