Articles | Volume 6, issue 4
Special issue:
GC Insights
05 Oct 2023
GC Insights |  | 05 Oct 2023

GC Insights: The crystal structures behind mineral properties – a case study of using TotBlocks in an undergraduate optical mineralogy lab

Derek D. V. Leung and Paige E. dePolo

Model code and software

derekdvleung/totblocks: TotBlocks 2022.05 Derek D. V Leung

Short summary
We used 3D-printed building blocks (TotBlocks) in an undergraduate optical mineralogy lab session to illustrate the links between crystal structures and the properties of minerals. Students built mica, pyroxene, and amphibole structures. We observed an improved understanding of cleavage (how minerals break) and pleochroism (how light interacts with minerals), but understanding did not improve with more abstract concepts. TotBlocks hold potential as a teaching tool in mineralogy classrooms.
Special issue
Final-revised paper