alb3825586
Obsidian, Lake County, Oregon
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Titel: Obsidian, Lake County, Oregon
Untertitel: Siehe automatische Übersetzung
Obsidian is volcanic glass. It forms when magma (molten rock) is ejected into the air during volcanic activity and chills (cools) so quickly that mineral crystals do not have a chance to form. Obsidian breaks with the conchoidal fracture characteristic of all glass. It is usually black, but may have bands or inclusions that create various optical effects, including a reflective 'sheen' in silver, gold or even rainbow colors.
Obsidian is volcanic glass. It forms when magma (molten rock) is ejected into the air during volcanic activity and chills (cools) so quickly that mineral crystals do not have a chance to form. Obsidian breaks with the conchoidal fracture characteristic of all glass. It is usually black, but may have bands or inclusions that create various optical effects, including a reflective 'sheen' in silver, gold or even rainbow colors.
Bildnachweis: Album / Science Source / JOEL AREM
Freigaben (Releases): ? Modellfreigabe: Nein - ? Eigentumsfreigabe: Nein
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Bildgröße: 3851 × 2550 px | 28.1 MB
Druckgröße: 32.6 × 21.6 cm | 1516.1 × 1003.9 in (300 dpi)
Schlüsselwörter: GEOLOGIE • HALBEDELSTEIN: OBSIDIAN • OBSIDIAN • REPORTAGE • VULKANE
