| 11. | The culture's graves often included ceramic art and semiprecious stones.
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| 12. | The swampy tundra to the north is rich in oil and semiprecious metals.
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| 13. | He mixed semiprecious stones with favrile glass and enamels.
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| 14. | Precious metals are used, but only semiprecious stones.
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| 15. | Some shells used in this way are decorated with metal and semiprecious stones.
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| 16. | The central panel is framed with a garland of fruits fashioned from semiprecious stones.
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| 17. | Turquoise and other semiprecious stones are mounted in rondels on its base and rim.
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| 18. | The dining table is topped in semiprecious stones embedded in water-repelling resin.
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| 19. | It is, after all, only semiprecious.
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| 20. | "It's been used as a semiprecious substance since the Stone Age.
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