John Sinkankas
id:
john-sinkankas-204-707362
title:
John Sinkankas
text:
John Sinkankas was a Navy officer and aviator, gemologist, gem carver and gem faceter, author of many books and articles on minerals and gemstones, and a bookseller and bibliographer of rare books.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/John_Sinkankas
date created:
2012-10-12T16:22:24Z
date modified:
2024-09-09T22:32:49Z
main entity:
{"identifier":"Q6258008","url":"https://www.wikidata.org/entity/Q6258008"}
image:
fields total:
13
integrity:
14