Race in Newport, Oregon. 79.07% of people are white, 0.80% are black, 0.98% are asian, 1.52% are native american, and 1.37% claim 'Other'. 11.28% of the people in Newport, Oregon, claim hispanic ethnicity (meaning 88.72% are non-hispanic).
The diameter of a kimberlite pipe at the surface is typically a few hundred meters to a kilometer (up to 0.6 mile). Kimberlites are the most important source of primary diamonds. Many kimberlite pipes also produce rich alluvial or eluvial diamond placer deposits. However, only about 1 in 200 kimberlite pipes contain gem-quality diamonds.
Best Answer: Phyllite is a metamorphic rock that was once slate and was on the way to becoming a mica schist under the temperature and pressure of metamorphism. The flakes you see are mica, which are not dangerous at all. Phyllite has some chlorite in it, which is a greenish mineral, so if you don't see anything like that, the rock might be a mica schist. Your rock is certainly rare over most of the US. but where it does occur it can generally be found in fairly large quantities.