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 ![mineral molecular model: unidentified two-atom](/sites/g/files/omnuum6316/files/chsi/files/mineral_molecular_model_unidentified_two-atom_cubic.png)

 

 **Mineral Molecular: Unidentified Two-atom, Cubic**  
  
**These models were built by Harvard students in geology and mineralogy classes. Building and studying molecular models has long been an important part of chemistry, allowing students and scientists to “think with their hands” and learn to imagine the invisible structures and their interactions.**  
  
 **CHSI Inv. Number 2011-1-0050  
1950s**