cyclosilicate

cyclosilicate

[¦sī·klō′sil·ə‚kāt]
(mineralogy)
A silicate having the SiO4 tetrahedra linked to form rings, with a silicon-oxygen ratio of 1:3, such as Si3O96- or Si6O1812-. Also known as ring silicate.
References in periodicals archive ?
AstraZeneca today announced that the US Food and Drug Administration (FDA) has issued a Complete Response Letter (CRL) regarding the New Drug Application (NDA) for sodium zirconium cyclosilicate (ZS-9), the investigational medicine being developed for the treatment of hyperkalaemia (high potassium level in the blood serum) by ZS Pharma, a wholly-owned subsidiary of AstraZeneca.
When we get to "The Nesosilicate Subclass" we find, within it, about 20 pages on Imperial topaz and the history of its extraction at Ouro Preto; when we come to "The Cyclosilicate Subclass" we find 12 pages (3 short chapters) on emeralds, 30 pages (two chapters) on other colored beryls, and an extraordinary 100 pages on tourmalines, including individual chapters on, for example, the Cruzeiro mine, the Pederneira mine, the Santa Rosa mine, the Jonas mine, the Golconda district, northeastern Brazilian tourmaline-bearing pegmatites, and miscellaneous occurrences of uvite, dravite and schorl.
18], is a common, rock-forming cyclosilicate mineral, generally occuring within granites and granitic pegmatites.
In his commentary on the poem, Italo Calvino points out that emerald is a kind of beryl (a cyclosilicate containing beryllium) and concludes that the whole line is based on approximate homophony, identifying the lude as: "Au beryl d'emeraude un glucinium" (Calvino 163-164).
Like beryl, milarite is a cyclosilicate, having Si[O.
Relationship to other species: It is a cyclosilicate.