5 mm - 37 cm Total

Its color will vary depending on the composition and structure

and zinc ores

9 in |  80

aragonite is the second most common polymorph of natural calcium carbonate (the most common is calcite)

Adamite Crystals on Matrix | 77.1 grams | Mina Ojuela, Mapimi, Durango, Mexico Rutilite 5 mm - 37 cmThis is an Adamite Crystals on Limonite matrix mined in Mina Ojuela, Mapimi, Durango, Mexico. Adamite typically occur as small, brightly colored, prismatic or blocky crystals, or as crusts or aggregates. It is commonly found in association with other minerals such as limonite, calcite, and smithsonite. Adamite colors include green, yellow, white, and reddish brown. The green color of adamite is caused by the presence of traces of copper in its crystal