Open AccessJournal Article
The structure of tourmaline
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This article is published in American Mineralogist.The article was published on 1948-10-01 and is currently open access. It has received 21 citations till now. The article focuses on the topics: Tourmaline.read more
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A "Simplexity Principle" and Its Relation to "Ease" of Crystallization
TL;DR: In this article, the authors examined the properties of the aluminosilicate minerals from the point of view of their crystal-chemical similarity and the fact that they may play either equivalent or nonequivalent roles in different structures are related to the development of preferred phases Those compounds with both Al and Si in equivalent 4-coordinated positions (high simplexity) are readily synthesized.
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Coupled substitutions in the tourmaline group
TL;DR: In this article, a statistical analysis of 136 natural tourmaline compositions from the literature reveals the presence and extent of coupled substitutions involving several cations and structural sites, such as de-hydroxylation and de-alkali-defect substitution.
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Influence of the X-site composition on tourmaline’s crystal structure: investigation of synthetic K-dravite, dravite, oxy-uvite, and magnesio-foitite using SREF and Raman spectroscopy
Eleanor J. Berryman,Bernd Wunder,Andreas Ertl,Andreas Ertl,Monika Koch-Müller,Dieter Rhede,Katharina S. Scheidl,Gerald Giester,W. Heinrich +8 more
TL;DR: The crystal structures of synthetic K-dravite, oxy-uvite, and dravite are investigated by polarized Raman spectroscopy, single-crystal structure refinement (SREF), and powder X-ray diffraction as discussed by the authors.
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Structure and photoluminescence characteristics of mixed nickel–chromium oxides nanostructures
M. Sh. Zoromba,M. Sh. Zoromba,Mohamed Bassyouni,Mohamed Bassyouni,Mohamed Helmy Abdel-Aziz,Mohamed Helmy Abdel-Aziz,Ahmed F. Al-Hossainy,Numan Salah,Ahmad Al-Ghamdi,Mohamed R. Eid +9 more
TL;DR: In this article, a nickel-chromium-layered double hydroxide (Ni(II)-Cr(III) LDH is synthesized in the absence and in the presence of functionalized amino-organic compounds such as acetamide, glycine, and urea.
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Tourmaline studies through time: contributions to scientific advancements
TL;DR: In the early and mid-20th century, tourmaline studies greatly expanded as a consequence of the exploration of wider ranges of geological settings, the development of instrumentation to characterize the chemical and physical properties of minerals and the applications that derived from these studies.