Yellowish fluorescence of the small separate glass bowl, indicating the presence of manganese
Medien
Teil von Glasharmonika
- Titel
- Yellowish fluorescence of the small separate glass bowl, indicating the presence of manganese
- Beschreibung
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Glass harmonica, around 1800, Deutsches Museum, Inv. No. 7996.
Equipment: Hönle UVAHAND 250 GS handheld UV-lamp, Intensity 250 mW/cm2 UVA).