. Carnegie Institution of Washington publication. 104 INFRA-RED EMISSION SPECTRA. as one might expect from a knowledge of the absorption bands at and fi to be noticed in fig. 37. The silicate band at /< is prominent. Other bands occur at 2, , , and /<, respectively. Spodumene [LiAl(Si03)2]. (From Pennington County, South Dakota. Irregular rod, 12 by mm. Energy supplied, and watts. Curves a and b, fig. 72.) This mineral contains cerium, lanthanum, and other "rare earths" as impurities. It can be melted in a blast flame. Considerable light was e
. Carnegie Institution of Washington publication. 104 INFRA-RED EMISSION SPECTRA. as one might expect from a knowledge of the absorption bands at and fi to be noticed in fig. 37. The silicate band at /< is prominent. Other bands occur at 2, , , and /<, respectively. Spodumene [LiAl(Si03)2]. (From Pennington County, South Dakota. Irregular rod, 12 by mm. Energy supplied, and watts. Curves a and b, fig. 72.) This mineral contains cerium, lanthanum, and other "rare earths" as impurities. It can be melted in a blast flame. Considerable light was emitted, due to the presence of impurities. The emission spectrum shows the silicate band, sharply defined at /«, with other bands at 2, , , , and //.. 4- 5 Spodumene. Beryl [Be3Al2(Si03)fi]. (Rod 10 by 3 mm. Energy, 7 to 8 watts. Curve a, fig. 73.) The rod was an opalescent milky glass, although the original crystal was a transparent green. The temperature was probably 11000. The emission spectrum is unusual in appearance, with a sharp maximum superposed upon it at fi. Other ill-defined maxima appear to be at , , , , , and ;«.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
Size: 1432px × 1745px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1908
