Definition of euhedral in English:

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Pronunciation: /juːˈhiːdr(ə)l/


(Of a mineral crystal in a rock) bounded by faces corresponding to its regular crystal form, not constrained by adjacent minerals.
Example sentences
  • During crystallization of the derivative granite, minor secondary zircon grew around the older cores, resulting in euhedral crystal forms of all the grains.
  • Some biotite crystals form perfectly euhedral plates, others show a reaction rim rich in opaque granules towards the surrounding microfelsitic base.
  • Titanite occurs as up to 2 cm long, dark brown, euhedral crystals in textural equilibrium with the other minerals.

For editors and proofreaders

Line breaks: eu|he¦dral

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