This exercise is due on Oct 31, 2014.
Download a pdf version of the homework.
Learn how to convert a chemical analysis of a mineral, which is a weight-percent measure of composition, to a mineral formula. The mineral formula is a molar basis of the composition.
The electron probe microanalyzer in the Department of Earth and Planetary Sciences. This instrument is capable of analysis of mineral samples as small as 10 µm in diameter.
You have to use a spreadsheet program to calculate the formulas. If you write the numbers down and use a calculator to get the formula, you’ll make mistakes. Almost certainly.