Since prehistoric times, it has been used to make tools, weapons, masks, mirrors and jewelry. This very sharp piece of natural glass is made into blades, arrows and daggers. Today, most black jade jewelry is produced in Central America and North America. It is the national stone of the United Mexican States.

BernalDiaz (Spanish historian) mentioned that Mexicans call this kind of stone "Tezcat". Mirrors polished by pyroxene are used by wizards as divination tools. For Mexicans, Blackstone has a special divinity, and the magic knife used by priests is made of Blackstone.