Contributor biographical information for Rocks & fossils : a visual guide / Robert R. Coenraads.
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Robert R. Coenraads is a leading gemologist, geologist and geophysicist. He travels the remotest regions of the globe to discover and collect exceptional specimens for scientific research. As a research associate of the Australian Museum, he leads rockhunting expeditions and directs exploration projects for precious gemstones and minerals.
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