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How gems are formed
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How gems are formed
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Describes the processes that take place under the surface of Earth to form different kinds of gems, and how some gems are mined, while others are replicated in laboratories.
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Authors
Keppeler, Jill
Subjects
Gems.
Precious stones.
Geology.
Language
English
Series
From the earth, how resources are made.
Dimensions
29 cm.