"Stones: Their Collection, Identification and Uses" by R.V. Dietrich

I In order to further my micro and macro research for my project, today I began reading the book "Stones: Their Collection, Identification and Uses" by R.V. Dietrich.

Using a combination of skimming and reading, I conquered a large part of the section 'Places Where Stones May Be Found' 

• Rock to stone transition: Weathering- physical and chemical processes that take place as a result of exposure to the elements. Disintegration- loosening and breaking up or large fragments into o smaller ones without changing the chemical composition. Decomposition- involves chemical activities. 
• The size and shape of a stone is due to transport. The cycle of a rock breaking down is as follows;
1. Breaks off the parent bedrock
2. Makes it's way to the stream via gravity or other external forces
3. Transport along stream or by glacier
4. Deposition in a location that is far from start.Over 
• Abrasion, attrition and solution.
• Abrasion- mechanical wearing down produced as the result of friction or impact.
• Attrition-reduction of the tools of abrasion caused by impact breakage
• Solution- chemical dissolving of a substance by a fluid