Poor to very good pezzottaite-(Cs) crystals abundant in a matrix composed mostly of albite variety cleavelandite. Distinct pezzottaite-(Cs) crystals reach 4 mm and are transparent. Minor black tourmaline, quartz points and muscovite are also present. From the type locality for pezzottaite-(Cs), which is a cesium beryllium lithium aluminum cyclosilicate - Cs(Be₂Li)Al₂(Si₆O₁₈), related to beryl. This is a globally rare species; Mindat lists just ten localities.