GEO Exploration Hub Latest Questions
Using the Igneous classification chart according to Silica content, would it be correct if a rock has 50% Silica then the components would be about 8% Olivine, 77% Pyroxene, and about 15% Calcium Plagioclase? Likewise if a rock has 45% ...
Back in 1965 or 1966 while looking for geodes in northeast Missouri, I noticed a small black object glistening in the water in the Fox River. Thinking I had found a really shiny pebble, I reached into the water only ...