GMPV
Geochemistry, Mineralogy, Petrology & Volcanology

Mineralogy

EGU GMPV ECS Campfires – Thursday March 27th @ 10am CET

March 18, 2025
EGU GMPV ECS Campfires – Thursday March 27th @ 10am CET

The fourth edition of the Geochemistry, Mineralogy, Petrology and Volcanology Campfires of the 2024/2025 season will take place on Thursday March 27th at 10am CET on Zoom. This edition will be a Scientific Campfire, during which three Early Career Scientists will present their work to the community. Our speakers for this edition are:   Javiera Ruz Ginouves, PhD student @ the Geology Departmen ...[Read More]

Granite Rocks: Mineralogy, Geochemistry, Textures, Types, Main Varieties, Uses, and More

March 13, 2025
Granite Rocks: Mineralogy, Geochemistry, Textures, Types, Main Varieties, Uses, and More
Two facies of G3-granite with columnar joints. ©Metwally Hamza

Granite is a coarse-grained, crystalline, plutonic, felsic, and acidic igneous rock. It contains more than 66% of silica “SiO2”, and about 14.42% of alumina “Al2O3”. The quartz makes up 10% : 50% of the whole rock. The alkali feldspars range from 65% to 90% of the entire rock. It’s leucocratic “light-colored”. The equivalent volcanic rock of granite is rhyolite. The melting point of most dry grani ...[Read More]