Charles A. Geiger

TL;DR: Several crystal chemical properties appear to promote the high Li-ion conductivity in cubic Al-containing Li(7)La(3)Zr(2)O(12) garnet, which is the best conducting Li-oxide garnet discovered to date.

TL;DR: In this article, the single-crystal polarized Raman spectra of four natural silicate garnets with compositions close to end-members almandine, grossular, andradite, and uvarovite, were measured, along with the powder Spectra of synthetic pyrope-grossular and Almandine-spessartine solid solutions.

TL;DR: The crystal structures of synthetic pyrope (Mg3AI2Si3012), almandine (FeI2Si 3012), and the solid-solution garnet compositions PY8o-Alm2o, PY6o-alm4o, and PY2oAlm8o have been refined in space group Ia1d from high-precision X-ray diffraction data with sin 0/>..> 0.4 A-I measured at 100 and 293 K.

TL;DR: In this article, the authors examined several possible processes for filling basalt and basaltic andesite vesicles with dark, partly-glassy segregation material and concluded that the preferred process is one in which the residual liquid migrates through a porous and permeable, but rigid, network of interlocking crystals in response to a pressure gradient generated by vapor saturated crystallization.

TL;DR: In this paper, single-crystal X-ray diffraction data between 100 and 500 K were collected from a synthetic crystal and a natural nearly end-member andradite with a low OH content.