During its peak in the 1950s and 1960s, Gravelotte emerged as one of the world's largest emerald mines, employing over 400 sorters. From 1929 to 1982, the total recorded emerald production from Gravelotte and the surrounding area, including the nearby Gravelotte township, amounted to nearly 113 million carats.

As indicated by de Oliveira, soil and water contamination are the most noticeable effects of emerald mining. Mine debris and schist, the result of mine waste sifted through water in search of overlooked emeralds, end up polluting soil and stream water.

The Rist Emerald Mine, located in Hiddenite, North Carolina, is situated within the Taylorsville-Hiddenite Area, a region with a rich historical significance. Currently closed with no known plans for reopening, the mine has played a significant role in the local mining industry.

Water-gel explosives authorized for emerald mining must be purchased from the Colombian military weapons manufacturer Indumil and kept in a secure area according to strict guidelines. The Chivor area has a military presence, and the explosives storage area at each mining operation is guarded by private security.

Highlights: Beautiful forest scenery, hidden mine entrance, and wildlife sightings; Tips: Be prepared for a moderate hike and bring plenty of water; 3. Crabtree Emerald Mine. Crabtree Emerald Mine, though known for its emeralds, also has a rich history of mica mining. This site offers a unique blend of gem hunting and historical exploration.