Book excerpt: Contents Paolo Fulignati Fluid inclusion evidence on the direct exsolution of magmatic brines from a granite intrusion beneath the eastern sector of Larderello geothermal field (Italy) P. Ramesh Chandra Phani and V.V.N. Raju A New kimberlite pipe in Balkamthota Vanka, Pennahobilam, Anantapur district, Andhra Pradesh, India. Field aspects and preliminary investigations Barbara Bonechi, Cristina Perinelli, Mario Gaeta, Vanni Tecchiato, Serena F. Granati Experimental constraints on amphibole stability in primitive alkaline and calc-alkaline magmas Bibhuti Gogoi, Ashima Saikia, Mansoor Ahmad Titanite-centered ocellar texture:A petrological tool to unravel the mechanism enhancing magma mixing Giulio Morteani and Dieter Rhede The multi-fluid metasomatic genesis of the Archean Poona emerald deposit (Murchison Province, Western Australia): microtextures, geochemistry and stable oxygen isotopes