Results 241 to 250 of about 12,098 (304)
Biologic Precipitation of Fluorite
Science, 1968 X-ray diffraction patterns show that the statoliths of marine mysid crustaceans are composed of fluorite, and that this mineral is also a principal phase of the gizzard plates of some tectibranch gastropods. A phosphatic phase is also indicated by chemical analyses in the gizzard plates, but its crystallochemical characterization has not been feasible ...
Lowenstam, H. A., McConnell, Duncan
openaire +4 more sources
Coloring of synthetic fluorite
Physica Status Solidi (a), 1980 A synthetic fluorite of the Harshaw Chemical Company is analyzed for rare earth elements, yttrium, and sodium. Samples of this fluorite are irradiated with X-rays, γ-rays, neutrons, electrons, protons, and α-particles at different energies, and their absorption spectra are analyzed.
Birsoy, R, Birsoy R.
openaire +2 more sources
Froth flotation of fluorite: A review
Advances in Colloid and Interface Science, 2021 Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, is the primary raw material for fluorine products used in diverse fields such as metallurgy, national defense, chemical and optical industries.
Zhiyong Gao +2 more
exaly +2 more sources
Laser ablation (in situ) Lu-Hf dating of magmatic fluorite and hydrothermal fluorite-bearing veins [PDF]
Geoscience Frontiers, 2023 Available online 26 May 2023Fluorite (CaF2) is a common hydrothermal mineral, which precipitates from fluorine-rich fluids with an exceptional capacity to transport metals and Rare Earth Elements (REEs).
Stijn Glorie +2 more
exaly +2 more sources
Photographed by Ron Wolf.Glassy brown fluorite crystals on brown white ...
Wolf, Ron
core +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Pyrochlore to Fluorite Transitions – Ordering in Fluorites?
MRS Proceedings, 2008AbstractTwo systems have been studied La2-xYxZr2O7 and La2-xYxHf2O7, as part of an on-going study of radiation tolerance in nuclear waste forms and related oxide materials. The structural effects of increasing Y content in La based zirconate and hafnate pyrochlores have been studied with neutron diffraction and electron microscopy. Results have shown a
Karl R. Whittle +4 more
openaire +1 more source
Physica Status Solidi (a), 1979
The absorption spectra of natural, colored fluorites (CaF2) are analyzed and compared with the presence of chemical impurities such as rare-earth elements, yttrium, and sodium located within the fluorite structure. Mechanisms for charge compensation of monovalent and trivalent ions are shown to be provided by color centers and related substitutional or
Birsoy R., Murr L.E.
openaire +2 more sources
The absorption spectra of natural, colored fluorites (CaF2) are analyzed and compared with the presence of chemical impurities such as rare-earth elements, yttrium, and sodium located within the fluorite structure. Mechanisms for charge compensation of monovalent and trivalent ions are shown to be provided by color centers and related substitutional or
Birsoy R., Murr L.E.
openaire +2 more sources
Fluorite-structure antiferroelectrics
Reports on Progress in Physics, 2019Ferroelectricity in fluorite-structure oxides like hafnia and zirconia have attracted increasing interest since 2011. Two spontaneous polarizations of the fluorite-structure ferroelectrics are considered highly promising for nonvolatile memory applications, with their superior scalability and Si compatibility compared to the conventional perovskite ...
Min Hyuk Park, Cheol Seong Hwang
openaire +2 more sources