A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . n, cacoxenite, make a long series of interestingminerals, among which occur many more not enumerated here. Turquoise is also here conspicuous. Its popularity as a gemand its interesting association with the pre-columbian history of thecontinent give it importance. The true oriental turquoise ofPersia is a delicate robins-egg blue, which the green and ratherclayey surfaces of the New Mexico mineral does not fairly rivaK Themines where th
A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . n, cacoxenite, make a long series of interestingminerals, among which occur many more not enumerated here. Turquoise is also here conspicuous. Its popularity as a gemand its interesting association with the pre-columbian history of thecontinent give it importance. The true oriental turquoise ofPersia is a delicate robins-egg blue, which the green and ratherclayey surfaces of the New Mexico mineral does not fairly rivaK Themines where the turquoise is now exhumed in the Los Cerillos Mts.,New Mexico, have been worked by the Mexican Indians for cen-turies, and this stone has been referred to the Chalchihuitl of theAztecs. Much turquoise of excellent color loses its intensity by dry-ing, and many so-called turquoises are fos?il bone colored by aphosphate of iron. However, beautiful blue turquoise has beentaken from American mines. In Nevada in a light colored porphyryin Esmeralda, Nye and Lincoln Cos. In N. Mex. in Grant, SantaFe, and Dona Ana Cos. Near turquoise are the admirably colored. HIDDENITE Stony Point, N. Collection, American Museum of Natural History
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
