| Details for "Rock & Gem" (close window to return to list) | |
| Title | Rock & Gem |
| Subtitle | Vol. 42, No. 07; July 2012 |
| Author | n/a |
| Section | Rock & Mineral |
| Keywords | Minerals |
| Notes | Gold; Brazil tourmaline; Silicon; Sluice boxes; Halite; Ruby Mountain, CO (garnet, topaz, obsidian); Color in Minerals; Montana fossils; faceting |
| Pub. Year | 2012 |
| Pages | 74 |
| Format | Magazine |
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| ISBN | n/a |
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