tortan.
/ˈtɔːtə/ Mining.
One of the large flat circular heaps or ‘cakes’ of ore spread upon the floor or patio (patio n. 2) in the Mexican amalgamation process.
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society > occupation and work > materials > raw material > mineral material > ore > [noun] > silver or copper ore > heap of
torta1839
1839 A. Ure Dict. Arts 1119 The patio, or amalgamation floor..is capable of containing 24 tortas, or flat circular collections of lama, of about 50 feet diameter, and 7 inches deep.
1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 187 Torta, a flat heap of silver ore (slime or pulp) prepared for the patio process.
This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2021).
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