. Carnegie Institution of Washington publication. INFRA-RED REFLECTION SPECTRA. BARITE (BaSO«). (Massive. Curve b, fig. 60.) The reflection decreases normally from 4 to p., then abnormally to There are maxima at , , and ft, followed by a trans- parent region to 12 p., where the present observations cease. The reflec- tion appears to increase at 30 o +3 u cr /o 6789 FIG. 61.—Celestite (a); Kieserite. 10 U CELESTITE (SrSCu). (Cleavage parallel to c. Curve a, fig. 61.) The reflection curve is similar to the preceding, with maxima at , , and The regio
. Carnegie Institution of Washington publication. INFRA-RED REFLECTION SPECTRA. BARITE (BaSO«). (Massive. Curve b, fig. 60.) The reflection decreases normally from 4 to p., then abnormally to There are maxima at , , and ft, followed by a trans- parent region to 12 p., where the present observations cease. The reflec- tion appears to increase at 30 o +3 u cr /o 6789 FIG. 61.—Celestite (a); Kieserite. 10 U CELESTITE (SrSCu). (Cleavage parallel to c. Curve a, fig. 61.) The reflection curve is similar to the preceding, with maxima at , , and The region beyond g p. is evidently complex, with a possible maximum at * KIESERITE (MgSO4+2H2O). (Massive. Curve b, fig. 61.) This mineral is hydroscopic, and does not take a high polish. The two small maxima occur at and p., FIG. 62.—Glauberite (a) \ Ferrous sulphate. GLAUBERITE (NaSCXCaSO*). (Ground parallel to c. Curve a, fig. 62.) ^i The maxima in this curve are not well denned, particularly the one at p. and the one at The band at p, is not so sharp as in 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
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