Ex-collection

“Formerly in the collection of”: a specimen's prior ownership, cited by name (ex. Ward's, ex. Sowerby, ex. the Smith collection). An old label and a catalogue number substantiate it; a named ex-collection adds value and history.

Sources

AAPS — Code of Ethics
Mindat — Advice for people selling and sorting a mineral collection

Cite this article

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

BibTeX · CSL-JSON

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

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