My name is Alessandro Da Mommio, I graduated in 2009 in Earth Sciences (first level degree) at the University of Pisa, and I obtained the MSc in Earth Sciences and Technologies at the same University in 2013. From November 2014, I work as PhD Student at "A.Desio" Earth Science Department in Milan (Italy). The passion for the optical petrography inspired me to create a website (http://www.alexstrekeisen.it/english/index.php) with the aim to provide a tool that would ease the recognition and identification of mineral phases in thin section

The website is designed for students of geology, petrography and geology enthusiasts, and for those who are interested in this matter. Each page consists of two parts, descriptive (an exhaustive explanation of the mineral phase) and visual (high-resolution photographs); the information contained on the pages are taken from various university textbooks and scientific papers, cited throughout the text.