Glossary · Minerals

Vug

A small cavity in rock or in a vein, lined with crystals that had room to grow freely; the source of most well-formed mineral specimens.

A small cavity in rock or in a vein, lined with crystals that had room to grow freely; the source of most well-formed mineral specimens. Larger than a pore, smaller than a cave.

Sources

Cite this article

Stratum Strata. "Vug" (Glossary). Stratum Strata pack 2026.09, as of 2026-09-16. https://stratum.black/strata/glossary/vug. Accessed 2026-09-21.

@misc{stratum-vug,
  title        = {Vug},
  author       = {{Stratum Strata}},
  howpublished = {\url{https://stratum.black/strata/glossary/vug}},
  year         = {2026},
  note         = {Glossary article, Stratum Strata pack 2026.09, as of 2026-09-16; sources: stratum. Accessed 2026-09-21.}
}

Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.

Sources for this article: Stratum editorial (Stratum editorial). As of 2026-09-16; Strata pack 2026.09. Written by Stratum in our own words; the works cited are where the science lives, and none of their text is reproduced here.

Found an error? Write to drew@tyr.ac with the article id glossary:vug.

Stratum is the inventory, provenance and certificate system for fossil, mineral and shell collections. Strata is its open reference: every fact cites its source, and the credits page lists each one with its licence.