'variolitic' can also refer to...


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Applied to a spherulitic texture consisting of fine, radiating fibres of plagioclase or pyroxene that is found in the glassy, chilled margin of shallow-level, basic, igneous intrusions (dykes and sills) or the glassy groundmass of some quenched (see quenching) basaltic lavas.

Subjects: Earth Sciences and Geography.

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