Practical gemmology a study of the identification of gem-stones, pearls, and ornamental minerals
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| Main Author: | |
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| Format: | Book |
| Published: |
Ipswich
N.A.G. Press
1984
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| Edition: | 6th ed |
| Subjects: | |
| Online Access: | Click Here to View Status and Holdings. |
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Gemmological instruments their use and principles of operation
