Sillimanite nodules

Lineations Metamorphic rocks

Sillimanite nodules in the migmatites of Punta Ainu. High Grade Metamorphic Complex of the Variscan belt in Sardinia. Photo ID 634

Photograph: R. Carosi – Unipi

Reference: CAROSI R., FRASSI C., MONTOMOLI C., IACOPINI D. (2006) – Excursion in the Variscan Basement of Northern Sardinia (Italy): Field Guide. In: (eds.) Köhn, D., and De Paor, D., General Contributions 2006, Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, Volume 22, Paper 3.