Quartz geode 5 : 無料・フリー素材/写真
Quartz geode 5 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Geodes are small to large, subspherical to irregularly-shaped, crystal-lined cavities in rocks. They form when water enters a void in a host rock and precipitates crystals. The most common geode-lining mineral is quartz.Stratigraphy: unrecorded (possibly from the Fort Payne Formation, Lower Mississippian)Locality: unrecorded (possibly from southern Kentucky, USA) |
| 撮影日 | 2023-05-01 07:45:47 |
| 撮影者 | James St. John |
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