How did a ‘cocktail of violence’ engulf Mozambique’s gemstone El Dorado?

For decades Cabo Delgado, in the northern corner of Mozambique, has been the country’s El Dorado, promising billions in natural gas and gemstones but delivering its population only violence and displacement.

https://www.theguardian.com/global-development/2020/sep/18/mozambique-cabo-delgado-cocktail-of-violence-escalates-el-dorado-of-gemstones