What does ppm stand for?
ppm stands for "pyrite-pyrrhotite-magnetite"
How to abbreviate "pyrite-pyrrhotite-magnetite"?
"pyrite-pyrrhotite-magnetite" can be abbreviated as ppm
What is the meaning of ppm abbreviation?
The meaning of ppm abbreviation is "pyrite-pyrrhotite-magnetite"
What does ppm mean?
ppm as abbreviation means "pyrite-pyrrhotite-magnetite"
