Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies "crystal-kingdom" "minerals constituting rocks" "Alumina-Silicates containing water" zeolite Cronstedt, 1756 chabazite (Bosc d'Antic, 1792) D.S. Coombs et al., 1997 1 chabazite-Caᵀ Coombs et al., 1997 2 chabazite-Na Coombs et al., 1997 3 chabazite-K Coombs et al., 1997