In New Mexico are found turquoises and a few garnets; it seems probable that turquoises were mined by the Aztecs.
The New Mexican garnets are found in McKinley county.
Garnets are found in the Sierra de Gata and in the Sierra Nevada fine marble is quarried.
The diamonds of this district are noted for their purity and lustre, and are generally associated with other crystals - garnets, agates, quartz and chalcedonies.