03-09-2011, 09:18 PM
(03-09-2011, 08:40 PM)WolfHouse Wrote:(03-09-2011, 03:58 PM)Duchess Wrote:
You guys could pick apart a grain of sand.
I don't say that meanly.
LOL
Now there lies an idea. IS THERE STRANGE SAND OR OIL IN THE RUG?
The study of individual grains can reveal much historical information as to the origin and kind of transport of the grain. Quartz sand that is recently weathered from granite or gneiss quartz crystals will be angular. It is called grus in geology or sharp sand in the building trade where it is preferred for concrete, and in gardening where it is used as a soil amendment to loosen clay soils. Sand that is transported long distances by water or wind will be rounded, with characteristic abrasion patterns on the grain surface. Desert sand is typically rounded.
Was there strange sand anywhere???? Oweeeeeeeee.
You are very good there Wolfhouse - very interesting read.
