Tweddillite (1 Bilder) aus "Spanien/Kanarische Inseln/Teneriffa/El Rosario, Municiopio/Barranco Hondo"
Tafelig gestreckte Kristalle in Kalsilit-Olivin-Leucit-Melilithit. Bildbreite 1,5 mm
Tweddillite (1 Bilder) aus "Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)"
Sehr Kleiner Tweddillit-X (ohne Maßstab) von der Typlokalität Wessels Mine (North Cape Provinz, Süd Afrika).
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