This sodium chloride crystal lattice model kit comes with a mixture of 125 green and silver atoms & forms a cube of 5x5x5 atoms that is about 200mm (8") across; only $39.95.
This model can be used to represent either sodium chloride (NaCl) or galena (PbS: lead sulfide) and shows a simplified version of a cubic close packed crystal structure. Sulfur is normally depicted as yellow, so if you would prefer that instead of green, please note this in the "Comments" portion of the on-line order form.
|68257C||Atom, Orbit, Cl-halogen, octahedral, green||63|
|68258C||Atom, Orbit, metal, octahedral, grey||62|
|68186-30||Wobbly bond, 30mm, each||300|