. Carnegie Institution of Washington publication. 56 789/0 —Deweylite(a); Apophyllite. APOPHYLLITE (Cleavage parallel to c, fig. 69.) There is the usual region of reflection common to the silicates. There are maxima at and SODIUM METAPHOSPHATE (NaPO3). (Curve a, fig. 70.) There is a single band at ^ which is harmonic with the band at 4 /*. In other regions the reflection compares with glass and the vitreous sub- stances 6 733 IO // FIG. 70.—Sodium metaphosphate (a); Tourmaline. TOURMALINE (Curve b, fig. 70.) The reflection was formed from a natural crystal face. Ther
. Carnegie Institution of Washington publication. 56 789/0 —Deweylite(a); Apophyllite. APOPHYLLITE (Cleavage parallel to c, fig. 69.) There is the usual region of reflection common to the silicates. There are maxima at and SODIUM METAPHOSPHATE (NaPO3). (Curve a, fig. 70.) There is a single band at ^ which is harmonic with the band at 4 /*. In other regions the reflection compares with glass and the vitreous sub- stances 6 733 IO // FIG. 70.—Sodium metaphosphate (a); Tourmaline. TOURMALINE (Curve b, fig. 70.) The reflection was formed from a natural crystal face. There are maxima 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
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