Eternal Gem
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✎ Suggest a correctionShows diamond mining in Africa from volcanoes and from the sea bottom of the coast of southwest Africa. Shows the processes involved in cutting diamonds.
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Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
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