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Glossary · Minerals

Streak

The colour of a mineral's powder, seen by rubbing it on unglazed porcelain; more constant than the mineral's colour.

The colour of a mineral's powder, seen by rubbing it on unglazed porcelain; more constant than the mineral's colour. Hematite streaks red-brown whatever its outward colour; pyrite streaks greenish black, gold streaks gold.

Sources

Cite this article

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

BibTeX · CSL-JSON

@misc{stratum-streak,
  title        = {Streak},
  author       = {{Stratum Strata}},
  howpublished = {\url{https://stratum.black/strata/glossary/streak}},
  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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