Examples of euhedral

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Five fractions of euhedral zircon prisms were analysed.
In the massive tuffs, vitric to crysto-vitric varieties show delicately shaped glass shards and broken phenocrysts of euhedral quartz, plagioclase, muscovite, orthoclase, zircon and ilmenite.
Unbroken crystals are euhedral; rounded, or more irregular, primary morphologies were not observed.
Euhedral concentric zoning is common in most crystals.
Pore-filling euhedral and vermiform kaolin booklets are common and are sometimes intergrown with the outer margins of quartz overgrowths.
Crystals range in size up to 3 mm and display a range of euhedral to angular (broken) forms.
In the groundmass, magnetite usually occurs as euhedral grains a few to several tens of microns in diameter.
Three fractions of small, euhedral zircon prisms were analysed.
In regions of low strain, some feldspars retain their euhedral crystal form.
Cumulus phases are euhedral, colourless olivine with chromite inclusions and euhedral chromite with phlogopite and olivine inclusions.
Staurolites are up to 1 cm long, euhedral, poikiloblastic and contain up to 40 vol. % inclusions of quartz and minor ilmenite.
Porphyritic with euhedral phenocrysts of clinopyroxene and plagioclase set in a groundmass of plagioclase microlites and devitrified glass.
This large euhedral crystal presents a single concentric zonal structure and incipient alteration around the borders and along zonal boundaries.
The lower bed is cross-bedded and contains much euhedral pyrite, and the upper bed contains rhyolitic clasts.

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