This article reviews blue shortwave-excited luminescence (BSL) in natural minerals and synthetic materials. It also describes detail the emission of seven gems displaying BSL, as well three references which BSL is caused by titanate groups (TiO6): benitoite, Ti-doped sapphire spinel. Emission (under 254 nm shortwave excitation) excitation spectra are provided, fluorescence decay times measured....

Ebrahim-Attar granitic pegmatite, which is distributed in southwest Ghorveh, western Iran, strongly peraluminous and contains minor beryl crystals. Pale-green to white grains are crystallized the rim central parts of granite body. The characterized by low contents alkali oxides (Na2O = 0.24–0.41 wt.%, K2O 0.05–0.17 Li2O 0.03–0.04 Cs2O 0.01–0.03 wt.%) high Be2O oxide (10.0 11.9 wt.%). elements (...

This report presents basic guidelines to help undergraduate first year geology students at the Federal University of Pernambuco Brazil. It reviews general aspects Mineralogy field trip presenting a comprehensive review on pegmatite classification, regional Seridó Pegmatitic Province (Rio Grande do Norte and Paraíba states) as well local geological three mines that are visited locally mapped. Du...