Minit Phosphorous atom, Pk, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 6 mm diameter atom centre, Tetrahedral, Color: Purple
Minit Carbon atom, Cb, Atom centres are colour-coded according to element with prongs set at the correct bonding angles, 6 mm diameter atom centre, Allene or Acetylene, Color: Black
Model, Aragonite Crystal, is a carbonate mineral, one of the two common, naturally occurring, crystal forms of calcium carbonate, CaCO3, It is formed by biological and physical processes, includes 44 1 inch balls,