Results 231 to 240 of about 76,744 (285)
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Fibrous nanoinclusions in massive rose quartz: The origin of rose coloration
American Mineralogist, 2001Pink nanofibers were extracted from rose quartz from 29 different pegmatitic and massive vein localities throughout the world. Their width varied from 0.1 to 0.5 μm. On the basis of optical absorption spectra of the fibers and the initial rose quartz, we conclude that these nanofibrous inclusions are the cause of coloration of massive rose quartz ...
Julia S. Goreva +2 more
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A trapped-hole center causing rose coloration of natural quartz
Zeitschrift für Kristallographie - Crystalline Materials, 1983Abstract In rose-colored natural quartz crystals two new hole centers were detected and analyzed by electron paramagnetic resonance (EPR). A hole center with characteristic doublet and sextet hyperfine structures was identified as an O− ion bridging between a substitutional aluminum and phosphorus atom each.
D. Maschmeyer, G. Lehmann
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Luminescent, optical and color properties of natural rose quartz
Radiation Measurements, 2007Abstract Rose quartz is an interesting mineral with numerous impurities that have been studied by scanning electron microscopy (SEM), X-ray fluorescence (XRF), X-ray diffraction (XRD), cathodoluminescence (CL), ion beam luminescence (IBL), radioluminescence (RL), thermoluminescence (TL) and optical absorption (OA).
Kibar, R. +5 more
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Fibrous nanoinclusions in massive rose quartz: HRTEM and AEM investigations
American Mineralogist, 2002Pink fibrous crystals within massive rose quartz from localities in California, South Dakota, Brazil, Madagascar, and Namibia were examined with high-resolution transmission electron microscopy (HRTEM) and analytical electron microscopy (AEM). This study reveals that the nanofibers in all samples are related to dumortierite.
Chi Ma +2 more
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Electrochemical Studies of Rose Bengal Using the Electrochemical Quartz Crystal Microbalance
ECS Meeting Abstracts, 2006Abstract not Available.
Fabrice P. Andrieux, Colin Boxall
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Collecting Rose Quartz and other Minerals on Plumbago Mountain
Rocks & Minerals, 1973(1973). Collecting Rose Quartz and other Minerals on Plumbago Mountain. Rocks & Minerals: Vol. 48, No. 2, pp. 75-77.
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The orientation and symmetry of light spots and asterism in rose quartz spheres from Madagascar
The Journal of Gemmology, 2006The orientation of light spots on the surface of four asteriated rose quartz spheres from Madagascar is described. The up to 50 different light spots form similar patterns on all samples examined with respect to their orientation, but are somewhat different according to their relative intensity.
Karl Schmetzer, Michael Krzemnicki
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Dynamic biaxial absorption spectra of Ti3+ and Fe2+ in a natural rose quartz crystal
Mineralogical Magazine, 1985AbstractThe absorption spectrum of Ti3+ in quartz is typical for that element in an octahedral site, except for the high oscillator strength of the band which indicates intensive charge transfer, most likely between a substitutional Ti4+ and an interstitial Ti3+.
A. J. Cohen, L. N. Makar
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Physics and Chemistry of Minerals, 2017
An extensive characterization of trace elements and point defects in rose quartz from the Borborema Pegmatite Province (BPP) in the northeast of Brazil was carried out by complementary spectroscopic methods. The aim here was to document the change in the configuration of point defects into the quartz lattice induced by heat-treatment and ionizing ...
Pedro L. Guzzo +4 more
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An extensive characterization of trace elements and point defects in rose quartz from the Borborema Pegmatite Province (BPP) in the northeast of Brazil was carried out by complementary spectroscopic methods. The aim here was to document the change in the configuration of point defects into the quartz lattice induced by heat-treatment and ionizing ...
Pedro L. Guzzo +4 more
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Rocks & Minerals, 2012
There can be multiple reasons for including rose quartz crystals in your collection. One that immediately comes to mind is that it's festive, much like the icing on a cake!
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There can be multiple reasons for including rose quartz crystals in your collection. One that immediately comes to mind is that it's festive, much like the icing on a cake!
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