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Opal Image |
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| Mineral: | Opal: SiO2·n(H2O) | |||||
| Comments: | Section of fossilized tree limb that is now completely replaced by black opal. | |||||
| Location: | Virgin Valley District, Humboldt Co., Nevada, USA. | |||||
| Scale: | 20x13x11 mm. | |||||
| Copyright: | © John Betts - Fine Minerals | |||||
| Counter: | This Image has been shown 536 times | |||||
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