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Koivula, John I. (1982) Shadowing: A New Method of Image Enhancement for Gemological Microscopy. Gems & Gemology, 18 (3) 160-164 doi:10.5741/gems.18.3.160

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Reference TypeJournal (article/letter/editorial)
TitleShadowing: A New Method of Image Enhancement for Gemological Microscopy
JournalGems & Gemology
AuthorsKoivula, John I.Author
Year1982 (October 1)Volume18
Issue3
PublisherGemological Institute of America
DOIdoi:10.5741/gems.18.3.160Search in ResearchGate
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Mindat Ref. ID531024Long-form Identifiermindat:1:5:531024:5
GUID0
Full ReferenceKoivula, John I. (1982) Shadowing: A New Method of Image Enhancement for Gemological Microscopy. Gems & Gemology, 18 (3) 160-164 doi:10.5741/gems.18.3.160
Plain TextKoivula, John I. (1982) Shadowing: A New Method of Image Enhancement for Gemological Microscopy. Gems & Gemology, 18 (3) 160-164 doi:10.5741/gems.18.3.160
In(1982, October) Gems & Gemology Vol. 18 (3) Gemological Institute of America

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Koivula, John I. (1982) Pinpoint Illumination: A Controllable System of Lighting for Gem Microscopy. Gems & Gemology, 18 (2) 83-86 doi:10.5741/gems.18.2.83
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Koivula, John I., Kammerling, Robert C. (1988) A Gemological Look At Kyocera's New Synthetic Star Ruby. Gems & Gemology, 24 (4) 237-240 doi:10.5741/gems.24.4.237
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Koivula, John I. (1982) Tourmaline as an Inclusion in Zambian Emeralds. Gems & Gemology, 18 (4) 225-227 doi:10.5741/gems.18.4.225
McClure, Shane F., Koivula, John I. (2001) A New Method for Imitating Asterism. Gems & Gemology, 37 (2) 124-128 doi:10.5741/gems.37.2.124
Koivula, John I. (1982) Some Observations on the Treatment of Lavender Jadeite. Gems & Gemology, 18 (1) 32-35 doi:10.5741/gems.18.1.32
Koivula, John I., Fryer, C. W. (1986) The Gemological Characteristics of Chinese Peridot. Gems & Gemology, 22 (1) 38-40 doi:10.5741/gems.22.1.38
(1982) Gemological Abstracts. Gems & Gemology, 18 (4) 235-242 doi:10.5741/gems.18.4.235
(1982) Gemological Abstracts. Gems & Gemology, 18 (1) 50-57 doi:10.5741/gems.18.1.50
(1982) Gemological Abstracts. Gems & Gemology, 18 (2) 110-118 doi:10.5741/gems.18.2.110
 
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