The Spectroscope and Gemmology Book

	List of Illustrations	7
	Preface	13
Pt. 1	The History and Development of Spectroscopy
1	'The Celebrated Phaenomena of Colours'	19
2	The Yellow Lines of Sodium	26
3	The Absorption Spectra of Solids	32
4	Other Uses of the Spectroscope	38
5	Emission Spectra	43
6	The Quartz Spectrograph	49
7	The Spectrophotometer	54
Pt. 2	Absorption of Gem Minerals
8	Absorption Spectra	63
9	Light Sources	70
10	The Causes of Colour	76
11	Absorption and Fluorescence Spectrum of Ruby	80
12	Absorption and Fluorescence Spectrum of Red Spinel	86
13	Absorption Spectra of Pyrope and Topaz	92
14	Absorption Spectrum of Emerald	98
15	Absorption Spectrum of Alexandrite	106
16	Absorption Spectrum of Jadeite	111
17	Absorption Spectrum of Demantoid Garnet	118
18	Other Chromium Spectra	123
19	Absorption Spectrum of Almandine Garnet	127
20	Absorption Spectrum of Blue Spinel	133
21	Absorption Spectra of Peridot and Sinhalite	138
22	Absorption Spectra of Enstatite and Diopside	144
23	Absorption Spectra of Kornerupine and Axinite	150
24	Absorption Spectra of Green Tourmaline and Iolite	155
25	Absorption Spectra of Idocrase, Actinolite and Serpentine	160
26	Absorption Spectra of Sapphire and Chrysoberyl	165
27	Absorption Spectra of Aquamarine and Orthoclase: Spodumene and Jadeite	170
28	Absorption Spectra of Andradite and Epidote	174
29	Absorption Spectra Due to Manganese	177
30	Absorption Spectra Due to Cobalt and Vanadium	184
31	Absorption Spectra Due to Copper: The Spectrum of Turquoise	190
32	Absorption Spectra of Zircon	194
33	The Rare Earth Elements	203
34	Absorption Spectra of Diamond	214
35	Miscellaneous Spectra	223
36	Absorption in Synthetic Gemstones	226
37	Absorption Spectra of Glasses	234
38	Fluorescence Spectra	239
39	Summary of Absorption Spectra	248
	References and Notes	257
	Index	263