Andrés Manuel del Río identified a new metallic element in 1801 while analyzing mineral samples from the Purísima del Cardenal mine in Zimapán. Although he initially proposed the names panchromium and later erythronium for his discovery, the scientific community failed to credit his work at the time, leaving the element to be renamed vanadium decades later by Nils Gabriel Sefström.
Early Education and European Training
Born in Madrid in 1764, del Río demonstrated early aptitude in scientific studies. He earned a bachelor's degree from the University of Alcalá in 1780 before receiving a government scholarship to attend the Royal Academy of Mines in Almadén. His education continued across Europe, including studies under Jean Darcet in Paris, Abraham Gottlob Werner in Freiberg, and at the Austrian Imperial-Royal Mining Academy in Schemnitz. During his time in Paris in 1791, he worked alongside Antoine Lavoisier and René Just Haüy before relocating to England to avoid the unrest of the French Revolution.
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In 1793, Fausto Elhúyar recruited del Río to teach mineralogy at the newly established Real Seminario de Minería in New Spain. Arriving at Veracruz in 1794, del Río began delivering the first mineralogy courses in the colony the following year. He authored Elementos de Orictognosía, the first mineralogy textbook published in America and the first of its kind written in Spanish. Throughout his tenure at what would eventually become part of the National Autonomous University of Mexico, he maintained close professional ties with Alexander von Humboldt, who validated the quality of del Río's research during his 1803 visit to Mexico City.
Political Exile and Final Years
Del Río was elected as a deputy to the Spanish Cortes in 1820 and advocated for the independence of New Spain. Following the 1829 decree that expelled Spaniards from Mexico, del Río moved to Philadelphia in protest, where he became a member of the American Philosophical Society and president of the Geological Society of Philadelphia. He returned to Mexico in 1834 to resume his academic duties, holding chairs in both mineralogy and geology until his death in 1849 at the age of 85.
Fast facts
- Born: 1764, Madrid
- Died: 1849, Mexico City
- Primary discovery: Vanadium compounds (1801)
- Notable work: Elementos de Orictognosía
- Academic affiliation: National Autonomous University of Mexico
- Citizenships: Spain, Mexico, New Spain
- Professional memberships: French Academy of Sciences
Questions readers ask
Why was del Río's discovery of vanadium not initially recognized?
After del Río sent samples to Alexander von Humboldt, chemist Hippolyte Victor Collet-Descotils incorrectly concluded the mineral contained only chromium, leading del Río to retract his claim.
Did del Río support Mexican independence?
Yes. He was a liberal who advocated for the independence of New Spain while serving as a deputy in the Spanish Cortes.
Achievements
- Held posts at National Autonomous University of Mexico
- Educated at University of Alcalá
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