Here are some possibilities:
* By production volume: Phosphate rock is the most produced mineral in Morocco, accounting for a significant portion of its mining industry and exports.
* By economic importance: Phosphate rock is also highly economically significant due to its use in fertilizers.
* By geological prominence: Morocco has vast deposits of phosphate rock, making it a geological hallmark of the country.
Therefore, while Morocco has other minerals like manganese, lead, zinc, and cobalt, phosphate rock stands out as the main mineral based on its production volume, economic importance, and geological significance.
