The Persians fully appreciate the beauty and power of this, their national stone, and they have a saying that to escape evil and attain good fortune one must see the reflection of the new moon either on the face of a friend, on a copy of the Koran, or on a turquoise,[161] thus ranking this stone with two most precious things, a friend and the source and warrant of religion. Possibly we should take this proverbial saying to indicate that whoever has a true friend, a copy of the sacred volume or a turquoise will be preserved from harm. The turquoise of the Los Cerillos mines in New Mexico is rudely extracted by building large fires at the base of the rock until it becomes heated, when cold water is dashed over it, the sharp change of temperature splitting up the rock. Some of the fragmentary material thus secured is worked up in the region into heart-shaped ornaments, or amulets, locally called malacates. The religious veneration with which many of the New Mexico Indians still regard the turquoise was noted by Major Hyde, when he explored the region in 1880, for some Pueblo Indians from Santo Domingo, New Mexico, expressed strong disapproval of his action in extracting turquoise from the old mine, as they looked upon this as a sacred stone which should not pass into the possession of those whose Saviour was not a Montezuma.[162] The ruins called Los Muertos, situated nine miles from Tempe, Arizona, have furnished a peculiarly interesting amulet or fetish of Zuñi workmanship. This is a seashell which has been coated with black pitch, in which are encrusted turquoises and garnets so disposed in mosaic as to represent clearly enough the figure of a toad, the sacred emblem of the Zuñis.[163]