Nikon Small World - Gallery - 17th Place, 1983 - John I. Koivula

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17^th Place, 1983

John I. Koivula

Gemological Institute of America
Santa Monica, California, USA

Amber polished to view dendritic air bubbles trapped between sequential flowlayers (40x)

Brightfield

The 1983 Winners

1^st Elieen Roux
2^nd Paul Gade
3^rd Paul Danielson
4^th John Douglass
5^th A. Sen-Gupta
6^th William Schadel
7^th George Wilder
8^th D. Boistesselin
9^th Per Kjeldsen
10^th Dennis Kunkel
11^th James Smith
12^th Samuel Serena
13^th N. Petraco
14^th C. Haltom, et al.
15^th William Sokol
16^th Oscar Alvarez
17^th John Koivula
18^th C. Gautier
19^th L. Tao
20^th Hrstka Jarosiav

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