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  • Spherulite - Wikipedia
    In petrology, spherulites ( ˈsfɛrʊlaɪts, sfɪər - ) are small, rounded bodies that commonly occur in vitreous igneous rocks
  • Spherulite | Crystallization, Microstructure, Porosity | Britannica
    spherulite, spherical body generally occurring in glassy rocks, especially silica-rich rhyolites Spherulites frequently have a radiating structure that results from an intergrowth of quartz and orthoclase
  • Spherulites - ALEX STREKEISEN
    Spherulitic aggregate (pherulites) are radiating arrays of fibrous, needle-like or acicular, crystals that are common in glassy felsic volcanic rocks Early descriptions of spherulites are by Cross and Iddings in 1891 and by Harker in 1901
  • What Are Spherulites and How Do They Form? | Earth Know
    Spherulites are small, spheroidal, or globular structures common in glassy volcanic rocks These bodies have dense masses of tiny, fibrous, prism-like, or acicular crystals of one or more minerals radiating from a common central point, often visible using a hand lens
  • Spherulites - an overview | ScienceDirect Topics
    Spherulites are spherical bodies composed of radiating needles or densely branched polycrystalline solidification patterns They can form directly by branching from a nucleus or through a two-stage process involving the development of a "wheat-sheaf" structure You might find these chapters and articles relevant to this topic
  • Spherulitic Growth in Crystalline Polymers | SpringerLink
    When polymers are crystallized from the melt, concentrated solutions, or viscous liquids, a spherulitic structure is developed with radiating and space filling branches of the chain-folded lamellar crystallites
  • Getting sphere-ious about spherulites | U. S. Geological Survey - USGS. gov
    Spherulites are distinctive rounded masses of radiating needle-like crystals which form by devitrification, a process where glassy, non-crystalline substances restructure into crystalline ones USGS photo by Jessica Ball The word "spherulite" comes from the Greek "sphaira" (ball or orb) and "lithos" (rock or stone)
  • Spherulites: How Do They Emerge at an Onset of Nonequilibrium Kinetic . . .
    Spherulites are complex defects emerging in condensed phase They bear something from the notion of extended defects, but they mean something distinctly more than this
  • On the Growth and Form of Spherulites | NIST
    The present work explores the growth and form of these structures, based on a coarse-grained field theory description Our phase field simulations indicate that spherulitic growth is due to a randomisation of the local crystallographic orientation as new crystal grains nucleate at the growth front
  • Rheology of crystallizing polymers: The role of spherulitic . . .
    Both the rheology and the spherulitic superstructures show pronounced gap dependencies, which we explain via finite-size effects in percolation phenomena and via surface-induced nucleation The modulus-crystallinity relationship can be described through a general effective medium theory





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