The scientific tourist #190 — Vanadinite

Coming to you from the Houston Natural History Museum, it’s a sample of Vanadinite:

Vanadinite

Vanadinite (the reddish crystals here) is an uncommon mineral — it is primarily an ore of vanadium, but to a lesser degree also one of lead. First discovered in Mexico in 1801, vanadinite has since been found in Europe, Asia, and elsewhere in the Americas. Vanadium, by the way, is a grayish metal that’s soft on its own, but ironically used to harden steel.

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