What exactly is "number nine" coal?

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What exactly is "number nine" coal?

2006-11-09 02:41:05 · 2 answers · asked by cirque de lune 6 in Science & Mathematics ➔ Earth Sciences & Geology

2 answers

The country band?

In coal mining, the miners give names to the main pay zones of minerals, and numbering the splits, as in “Pocahontas Number Nine Coal” or “the Great Gossan Lead” for example.

See more here:
http://www.etsu.edu/biology/roan-mtn/newsletterarticles/The%20Rocks.htm

http://www.dnr.state.oh.us/geosurvey/pdf/stratcol.pdf

2006-11-09 03:01:10 · answer #1 · answered by Dr. J. 6 · 0⤊ 0⤋

it is a less valuable grade of coal. Number one has the less ore and more purity, etc...

2006-11-09 10:58:46 · answer #2 · answered by Robert B 7 · 0⤊ 1⤋