Process manufacturing produces co-products and by-products. A co-product is a saleable end item that results from a process. A by-product is a material of value that is produced incidental to or as a residual of the process.
D. a rock with metamorphic minerals but no foliation or lineation. A shale is metamorphosed into three rock types: (1) a banded gneissic rock; (2) a rock with small mica crystals with a shiny aspect; (3) a very shiny rock with large mica crystals; and (4) a dull slate with cleavage. Which of the following lists these rocks in order of increasing metamorphic grade?
What is the difference between slate and shale? Hi, in our school we have some slate, and we think some shale, but we can't agree on how to tell the difference in a practical way for our science technicians, or teachers. I thought shale was softer, and more brittle, but some labelled bags we have seem very similar.