Fibro-radiated crystallisation of Willemite
Fibro-radiated crystallisation of Willemite (Zn2SiO4) coloured by cobalt on the surface of a glaze. This type of crystallisation may occur on vitreous coatings applied to gems set in ancient jewels.
A paper on such a case will be published soon. Stay tuned!
🔬 Micrograph: F. Notari
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