veinstuff

noun

veinstuff

noun

Etymology From vein + stuff.

1

Business, Mining Minerals found in a vein, of lesser value than ores.

The less valuable minerals are called veinstuffs, and the more valuable are termed vein ores. The more common veinstuffs are calcite, quartz, heavy spar, and fluorspar.1900, Lyman Child Wooster, The Geological Story of Kansas, page 59:

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