Herein, we study the electronic structure, energies, and vibronic structure of optical dd
transitions of Cr3+ ions doped in beryl (Be3Si6Al2O18: Cr3+, emerald). A computational …

Magmatic gas exsolving during late-stage cooling of shallow magmas has been considered
an important facilitator of low-pressure alteration and metal transport. However, the chemical …

Compressional and shear wave velocities of topaz have been measured by ultrasonic
interferometry in a multi‐anvil apparatus up to 13 GPa at room temperature. By fitting the …

We investigate the nonlinear optical properties of natural topaz. For the first time, the
observation of nonlinear phenomena related to multiphoton absorption effects, such as the …

The equation of state and stability of topaz at high-pressure/high-temperature conditions
have been investigated by in situ synchrotron X-ray diffraction (XRD) and Raman …

东北亚地区下方地幔过渡带与太平洋俯冲滞留板片的相互作用对于区域深部物质运移和区域
构造演化具有重要影响. 基于中国国家数字台网记录的发生于鄂霍次克海与千岛群岛地区的两个 …

Yellow topaz from the Schneckenstein crag in Saxony, Germany, is a famous and historically
important gemstone. Surprisingly, mineralogical studies of the material are comparably …

The Cr3+ luminescence spectra of zoisite and kyanite, two geologically important minerals,
were studied up to 40 and 20 GPa, respectively, in various pressure media. Cr3+ substitutes …

Hydrous minerals in the subducting slabs are potential water carriers into the deep mantle,
and thus the synthesis of new hydrous phases is significant in our understanding of water …

In the 1980s, large parts of the Bohemian Massif in Austria were explored for the occurrence
of raw materials (Göd, 1988), and a trace content of topaz was discovered in channels …