Nikon Small World - Gallery - 19th Place, 1992 - John I. Koivula

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19^th Place, 1992

John I. Koivula

Gemological Institute of America
Santa Monica, California, USA

Inclusions of rutile growing from a hematite core in Brazilian quartz (14x)

Darkfield - Learn more

The 1992 Winners

1^st Lars Bech
2^nd Gail MacKensie
3^rd W. Bronakowski
4^th M. Walker
5^th C. Gautier
6^th Marc Van Hove
7^th Karl Deckart
8^th M. Walker
9^th Kari Kinnunen
10^th A. Andreatta
11^th Steffen Albrecht
12^th William West
13^th George Ayuob
14^th Pentti Alho
15^th Howard Schneider
16^th S. Resultay
17^th John Koivula
18^th Kari Kinnunen
19^th John Koivula
20^th James Evarts

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