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 (sfîr′yə-līt′, -ə-līt′, sfĕr′-)
A small, usually spheroidal body consisting of radiating crystals, found in obsidian and other glassy lava rocks.

spher′u·lit′ic (-lĭt′ĭk) adj.
References in periodicals archive ?
From the SEM observation, spherulitic structures can be directly observed on the surfaces of the m-LLDPE films (Fig.
When the surface is observed, only cross sections of the leaves are visible and the crystals exhibit a very regular spherulitic structure.
2 illustrate the distinct spherulitic structure, yet the films are smooth and uniform, which indicates that films are stable and homogeneous.
The tubes of calcareous sabellids contain a thin, external, spherulitic layer and a thick, inner, spherulitic prismatic layer (Vinn et al.
In fact, observations of the prismatic layer showed some significant alterations, presenting fibrous spherulitic crystalline arrangements instead of the nondenticular composite crystals.
The authors try to prove that the most ordered CI in cast iron called spherulitic graphite (SG) have a turbostratique structure.
The orientation values for the precursor MDO films cooled under normal conditions (cooling drum) and not stretched (DR=1) are very low, indicative of a spherulitic structure.
2007) studied direct observation of spherulitic growth stages of CaC[O.
Mexivada recently discovered outcropping high-level Midas-style gold- and naumannite (silver selenide) bearing quartz veining at the surface in silicified/replaced spherulitic rhyolites, which also are found near the top of the Midas Mine gold-silver system.
In the microphotograph on the left of Figure 18, a crystalline formation of spherical symmetry can be observed, which is called spherulitic geometry or structure.