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Last edited by wolfgang8741
October 20, 2023 | History
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John Sinkankas

We need a photo of John Sinkankas

American gemologist

Born 1915
Died 2002

22 works Add another?

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  • Cover of: Sinkankas' Standard catalog of gem values

    First published in 1988 1 edition in 1 language — 1 previewable
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  • Cover of: Emerald: the most valuable beryl, the most precious gemstone

    First published in 2002 1 edition in 1 language
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We need a photo of John Sinkankas

American gemologist

Born 1915
Died 2002
Subjects
Precious stones, Gems, Mineralogy, Minerals, Beryl, Gem cutting, Bibliography, Catalogs, Collection and preservation, Emeralds, Gems - Collecting of specimens, Geology - Field work, Handbooks, manuals, Handicraft, Minerals - Collecting of specimens, Minéralogie, Precious stones, north america, Reference books
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North America

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History

Download catalog record: RDF / JSON
October 20, 2023 Edited by wolfgang8741 fix typo of year to 19--
October 20, 2023 Edited by wolfgang8741 add wikidata, viaf, isni, and year of birth/death (from viaf)
August 22, 2008 Edited by RenameBot fix author name
April 1, 2008 Created by an anonymous user initial import