This conference talk discussed depictions of mining in Tolkien's legendarium, drawing comparisons to Agricola’s De Re Metallica.
"Smaug’s Hoard, Durin’s Bane, and Agricola’s De Re Metallica: Cautionary Tales Against Mining in Tolkien’s Legendarium and the Classical Tradition,"
Journal of Tolkien Research: Vol. 13
, Article 5.
Available at: https://scholar.valpo.edu/journaloftolkienresearch/vol13/iss2/5