Grain of History

On this lab we were to examine many examples of sand from diffrent places in the world. These sand samples were taken by students from wherever they travelled, and it really is incredible how diffrent they all really are. I never noticed so much of a diffrence. The first sample i examined was from Brazil, it was clear and tan rocks that are most likely from a grain source. It was wells sorted and round as well as big minerals.
I then examined Cancun Mexico, and these minerals were white and medium sized. They were well sorted and most likely came from a grain source. Next was Key West, and these minerals were crystal-like with black edges. Small minerals that were very subangular and were moderately sorted. The bahamas sand strain very light colored almost white, very small and subangular, The rocks minerals were a grain source that are moderately sorted. Maui, my favorite, was black under the scope. These minerals were magnetic and subangular shaped. Minerals are well sorted and are most likely from a volvanic source. St. Martin's sand in the carribean is very beautiful and white, medium sized and subangular. It has a very poor sorting arrangement but very white minerals, most likely from a grain source. Hampton beach, the most local beach to us is very clear rock/ crystal like mineral. The minerals are big, rounded and very well sorted.Finally Gloucster is very clear and small. The shape is subangular and well sorted rocks.