Goes under the tradename of Mexican Onyx, but in reality it is not a true Onyx, a type of Agate. Instead it is a Limestone Onyx, a type of Calcite.
Onyx is known as a stone of good fortune. Mexican Onyx is known to increase patience and motivation. If you’re fickle minded, Mexican Onyx is known to ground you and to help with making decisions. Mexican Onyx brings strength and hence it is a stone for sportsmen.
Origin: Pedrara Quarry, El Marmol, Ensenada Municipality, Baja California, Mexico