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
Aquamarine (film) accidentally slips into the local beach club swimming pool and notices something strange under the water with blue hair and a tail. She tries to tell herself it was only a figment of her imagination since she's been afraid of water ever since her parents' deaths, but Hailey convinces Claire to come back and explore it later that night. When they do, they find a mermaid named Aquamarine (Sara Paxton). They instantly become friends and Aquamarine tells the girls that she needs to prove to her father that true love exists or she'll be made to get married to a