Beryl occurs in the ancient Roman mines at Wadi Nugrus, South Eastern Desert of Egypt. It
ranges from small crystals to 10 mm in size, and it varies in color, appearing as bright green …

Проведено исследование редкоэлементного состава разновидностей берилла (469
анализов методом SIMS). Красные бериллы выделяются повышенным содержанием …

Introduction of modern technologies and methods and quality analysis for the gemstone
industry are the main strategic initiatives of the Small and Medium Development Authority …

A study of the trace element composition of beryl varieties (469 SIMS analyses) was carried
out. Red beryls are distinguished by a higher content of Ni, Sc, Mn, Fe, Ti, Cs, Rb, K, and B …

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 …

Emeralds–the green colored variety of beryl–occur as gem-quality specimens in over fifty
deposits globally. While digital traceability methods for emerald have limitations, sample …

Впервые проведено локальное исследование (методом SIMS) распределения редких
элементов (включая воду и галогены) в двух кристаллах желтого берилла (гелиодора) …

Incorporation of ions into the crystal structure of beryl (Be 3 Al 2 [Si 6 O 18]) can take place
by direct ion-to-ion substitution of the framework components Al 3+, Be 2+ and Si 4+ or by …

Beryl (mostly emerald) was mined in Egypt since Antiquity, particularly the so-called
“Cleopatra's Mines” in the Eastern Desert were a major source of emerald in the world …

Our combined mineral chemistry and spectroscopic studies enabled us to envisage details
about composition and genesis of beryl from the Eastern Desert of Egypt. Two types of beryl …