Polarisationsmikroskopie: Amphibolsyenit von Biella/Piemont
Perthitischer Alkalifeldspat (oben). Plagioklas mit Myrmekit-Rand (unten).
Gesteinsdünnschliff (25 µm Dicke). Gekreuzte Polarisatoren.
Alte Dünnschliffsammlung (Voigt & Hochgesang, Göttingen), Schliff 33, Rosenbusch I, Tiefengesteine, Syenitische Gesteine, Syenite der Alkali-Kalkreihe. Bezeichnung bei Rosenbusch: Amphibolsyenit.
Fundort: Biella, Piemont.
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| Sections | Natur: Mikroskop-Aufnahmen Motive: Wissenschaft Natur: Steine & Mineralien |
| Folders | Gesteinsdünnschliffe |
| Views | 2,180 |
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