Lapidary Journal 1992 John I Koivula - Abstracts
| Lapidary Journal 1992 John I Koivula | |||||
| Title | Subject | Authors | |||
|---|---|---|---|---|---|
| Almandine in sapphire. (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Carbon dioxide in corundum. (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Ferrocolumbite in andalusite. (gemstone inclusion) (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Gold in quartz. (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Millipedes in amber. (fossilized resin) | Hobbies and crafts | John I. Koivula | |||
| Silver in quartz. (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
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