Lapidary Journal 1993 John I Koivula - Abstracts
| Lapidary Journal 1993 John I Koivula | |||||
| Title | Subject | Authors | |||
|---|---|---|---|---|---|
| Bismuth in quartz. | Hobbies and crafts | John I. Koivula | |||
| Garnet in diamond. (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Golden windows. (fossils in amber) | Hobbies and crafts | John I. Koivula | |||
| Inside: an inclusion in a garnet is a window to a geological world of an earlier time. | Hobbies and crafts | John I. Koivula | |||
| Realgar in chalcedony. (arsenic sulfide mineral inclusion; mineral quartz) (Inclusion of the Month) | Hobbies and crafts | John I. Koivula | |||
| Triploidite in quartz. | Hobbies and crafts | John I. Koivula | |||
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