Mineral site, and from there further subdivided by the chemistry of the W site. The Y and Z sites can accommodate a variety of cations, especially various transition metals; this variability in structural transition metal content gives the tourmaline group greater variability in colour. Other cyclosilicates include beryl, AlBeSiO, whose varieties include the gemstones emerald (green) and aquamarine (bluish). Cordierite is structurally similar to beryl, and is a common metamorphic mineral. Sorosilicates, also termed disilicates, have tetrahedron-tetrahedron bonding at one oxygen, which results in a 2:7 ratio of silicon to oxygen. The resultant common structural element is the [SiO] group. The
Gemstone Healer Gemstone Healer Gemstone Healer is a computer action adventure game created by Canadian developer Paradigm Creators and published in 1986 by Strategic Simulations. It was developed by Trouba Gossen (who was also responsible for the graphics), Peter Lount (design and programming); with assistance by Kevin Pickell (porting to C-64). It is a sequel to "Gemstone Warrior". "Gemstone Healer" is a 2D action adventure title with the player controlling an armored figure that they would move from area to area in search of treasure and the way to heal the Gemstone. It uses cellular automata to generate maps. The game takes