The orthopyroxene crystals are 1-80 mm across but may reach 150 mm, and form radiating bundles. Small, 0.5-mm crystals of olivine occur as inclusions in orthopyroxene and vice-versa, particularly near ...

The occurrence of orthopyroxene-cordierite as liquidus phases led Comin-Chiaramonti et al. (2010) to consider their origin to be associated with friction melting.

Discover the unique mineralized rocks of Bounta in C？te d'Ivoire. Petrographic analysis reveals trondhjemite, tonalite, and granodiorite suites formed during the Liberian orogeny. Explore the ...

Entrained-flow gasifiers convert coal into synthesis gas, a valuable feedstock for synthetic fuels and chemicals, as well as play an important role in integrated gasification combined cycle plants ...

Researchers studying the atmospheres of white dwarfs have discovered previously unknown rock types which made up the exoplanets that once surrounded the stellar remnants.

For many exoplanets, though, olivine might be absent and quartz present, or orthopyroxene could be absent and periclase is present, and so a new classification nomenclature was developed.

Rather than being created solely during supernova explosions, chemical elements could also be produced deep within the Earth's lower mantle. It has long been theorized that hydrogen, helium, and ...

A transmitted light view through a 200-micron section of a peridotite sample, showing the three main minerals — olivine (clear-green), orthopyroxene (grey-green) and garnet (pink). Credit: Dr. Emma ...

Orthopyroxene Orthopyroxene forms euhedral to subhedral crystals with stubby to elongate habit, and shows a seriate distribution with crystal size rarely exceeding 1 mm (Figures 2A,C,E). Philocrysts ...

Rapid orthopyroxene growth induced by silica assimilation: constraints from sector-zoned orthopyroxene, olivine oxygen isotopes and trace element variations in the Huangshanxi Ni–Cu deposit, Northwest ...