90 likes | 374 Views
Mineralogy. Geol 2311-part 2. Lie #1: A mineral has a definite chemical composition. Let’s take sphalerite for example. Analyses of Sphalerite. Recalculated Sphalerite. Cation/S is 1:1. (Zn,Fe)S. 2 nd lie: didn’t follow the PDFN order Chemical substitution or Solid Solution
E N D
Mineralogy Geol 2311-part 2
Lie #1: A mineral has a definite chemical composition • Let’s take sphalerite for example
Recalculated Sphalerite • Cation/S is 1:1
(Zn,Fe)S • 2nd lie: didn’t follow the PDFN order • Chemical substitution or • Solid Solution • (Zn0.64Fe0.31Mn0.05)S
How do you represent data in a ternary system? http://csmres.jmu.edu/geollab/fichter/SedRx/readternary.html