• Fresnoite: Mineral information, data and localities.

    www.mindat.org/min-1607.html Fresnoite mineral data, information about Fresnoite, its properties and worldwide locations. SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser! Log In Register.
  • Fresnoite Mineral Data

    webmineral.com/data/Fresnoite.shtml Visit our Advertisers for Fresnoite : A Bijoux Google Search for Fresnoite Dakota Matrix Minerals Google Search for Fresnoite John Betts Fine Minerals Search for Fresnoite McDougall Minerals Google Search for Fresnoite Rock and Mineral Shows Google Search for Fresnoite Weinrich Minerals, Inc. Google Search for Fresnoite. Ask about Fresnoite here :
  • Fresnoite mineral information and data

    www.dakotamatrix.com/mineralpedia/6230/fresnoite Fresnoite is a rare mineral that can be found in additional localities in the United States, as well as in Canada, Germany, and Russia. As its type locality it occurs “disseminated in gneissic metamorphic rocks composed mainly of sanbornite and quartz.” Fresnoite will fluoresce pale yellow under short wave ultraviolet light.
  • Fresnoite - Handbook of Mineralogy

    www.handbookofmineralogy.org/pdfs/Fresnoite.pdf Fresnoite Ba2TiOSi2O7 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Tetragonal. Point Group: 4mm: As subhedral to euhedral tetragonal crystals, slightly elongated along [001], bounded principally by f110g and f001g, to 2.1 cm.
  • Scott Kleine's Fresnoite Article

    www.greatbasinminerals.com/.../Fresnoite%20Article.htm A fresnoite crystal shown under daylight above left, and fluorescing under shortwave UV light above right. Then, in the middle of October 1997, John Veevaert wrote to tell me about a surface pocket of small, fluorescent fresnoite crystals he had recently found there at night.
  • Fresnoite: Unusal Titanium Coordination | Science

    science.sciencemag.org/content/156/3780/1361 The crystal structure of fresnoite, Ba2(TiO)[Si2O7], consists of [Si2O7]6- double groups and titanium-centered square pyramids linked to form flat sheets. Intercalated between these sheets are Ba2+ ions in highly distorted pentagonal antiprisms. The structure of fresnoite is related to that of melilite, (Ca,Na)2(Mg,Al[Si27].
  • Fresnoite: A new ferroelectric mineral: Journal of Applied ...

    aip.scitation.org/doi/abs/10.1063/1.369541 Fresnoite, Ba2TiOSi2O7, has been predicted structurally to be a new ferroelectric. Detection of both ac and dc dielectric hysteresis verifies the prediction. The spontaneous polarization Ps estimat...
  • Growth and physical properties of fresnoite Ba2TiSi2O8 ...

    www.sciencedirect.com/science/article/pii/0022024877900069 Single crystals of fresnoite Ba 2 TiSi 2 O 8 with diameters up to 2 cm and lengths of 7 cm have been grown by Czochralski technique from a stoichiometric melt. Optical, dielectric, elastic, thermoelastic, piezoelectric, electrooptic, nonlinear optic, and thermal properties have been measured.
  • Synthesis and growth of fresnoite (Ba2TiSi2O8) from a TiO2 ...

    nvlpubs.nist.gov/nistpubs/jres/74A/jresv74An2p229_A1b.pdf JOURNAL OF RESEARC H of the Notionol Bureau of Standards - A. Physics and Chemistry Vol. 74A, Na. 2, March-April 1970 Synthesis and Growth of Fresnoite (Ba 2TiSi 20 S) from a Ti02 Flux and Its Relation to the System BaTi03-Si02 C. R. Robbins Institute for Materials Research, National Bureau of Standards,
  • Supersonic propagation of lattice energy by phasons in ...

    www.ornl.gov/content/supersonic-propagation-lattice-energy-phasons-fresnoite Lattice energy propagates 2.8−4.3 times the speed of sound in the form of phasons, which are caused by an incommensurate modulation in the flexible framework structure of fresnoite. The phasons enhance the thermal conductivity by 20% at room temperature and carry lattice-energy signals at speeds beyond the limits of phonons.