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| First Page | Document Content | |
|---|---|---|
 Date: 2012-01-16 08:13:59Crystallography Superhard materials Oxide minerals Transparent materials Economic geology Ruby Gemstone Tugtupite Maniitsoq Gemstones Chemistry Matter |
| First Page | Document Content | |
|---|---|---|
Date: 2012-01-16 08:13:59Crystallography Superhard materials Oxide minerals Transparent materials Economic geology Ruby Gemstone Tugtupite Maniitsoq Gemstones Chemistry Matter |
