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Cohen, A.J. (1956) Color centers in the α-quartz called amethyst. American Mineralogist: 41: 874-891.

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Year1956
Original EntryCohen, A.J. (1956) Color centers in the α-quartz called amethyst. American Mineralogist: 41: 874-891.
Mindat Ref. ID16100241Long-form Identifiermindat:1:5:16100241:1
GUID0
Full ReferenceCohen, A.J. (1956) Color centers in the α-quartz called amethyst. American Mineralogist: 41: 874-891.
Plain TextCohen, A.J. (1956) Color centers in the α-quartz called amethyst. American Mineralogist: 41: 874-891.

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Amethyst

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Cohen, Alvin J. (1956) Color centers in the α-quartz called amethyst. American Mineralogist, 41 (11-12) 874-891
Hassan, F., Cohen, A.J. (1974) Biaxial Color Centers in Amethyst Quartz. American Mineralogist 59, 709-718.
Cohen, A.J. (1985) Amethyst color in quartz, the result of radiation protection involving iron. American Mineralogist: 70: 1180-1185.
Hassan, F., Cohen, and Alvin J. (1974) Biaxial color centers in amethyst quartz. American Mineralogist, 59 (7-8) 709-718
Cohen, Alvin J. (1975) On the color centers of iron in amethyst and synthetic quartz. A reply. American Mineralogist, 60 (3-4) 338-339
Partlow, D.P., Cohen, A.J. (1986) Optical studies of biaxial Al-related color centers in smoky quartz. American Mineralogist: 71: 589-598.
Cohen, A.J., Hassan, F. (1974) Ferrous and ferric ions in synthetic alpha-quartz and natural amethyst. American Mineralogist: 59: 719-728.
Cohen, Alvin J. (1985) Amethyst color in quartz, the result of radiation protection involving iron. American Mineralogist, 70 (11-12) 1180-1185
Lehmann, Gerhard (1975) On the color centers of iron in amethyst and synthetic quartz. A discussion. American Mineralogist, 60 (3-4) 335-337
Cohen, Alvin J. (1956) Anisotropic Color Centers in α Quartz. Part I. Smoky Quartz. The Journal of Chemical Physics, 25 (5) 908-914 doi:10.1063/1.1743141
Cohen, A.J., Makar, L.N. (1982) Models for color centers in smoky quartz. Physica Status Solidi (A): 73: 593-596.
 
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