Definition of vug in English:


Syllabification: vug
Pronunciation: /vəɡ


A cavity in rock, lined with mineral crystals.
More example sentences
  • The banded quartz is fascinating to study; euhedral crystals originally deposited in vugs and cavities were repeatedly covered with thin bands of agate.
  • Veins in some septaria do not fill the fractures completely but form elongated vugs that are sometimes lined with well-formed crystals.
  • Very narrow vugs containing quartz crystals are encountered in the quartz seams at times, but these invariably are barren of gold.


early 19th century: from Cornish vooga.



Pronunciation: /ˈvəɡē/
More example sentences
  • Unlike the vein deposits, the metasomatic flats are frequently vuggy and are the source of most crystallized mineral specimens from the district.
  • During the mid-to-late 1970s some spectacular specimens were produced from a vuggy to cavernous fissure zone intersected by an exploration drift on the 17 level.
  • During a nine-week period a vuggy zone about 250 feet inside the main haulage adit of the Mountain Monarch mine was exploited, and many fine rhodochrosite crystal groups were collected.


Pronunciation: /ˈvəɡyələr/
More example sentences
  • We then obtain micro-scale computations of flow in such vugular media on very fine grids that resolve the geometry of the vugs.
  • The product is effective when drilling formations that are fractured or vugular and when drilling highly porous formations.
  • It is believed that the gels have not chemically degraded, but that the water eventually finds another fracture or vugular system to travel through.

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