from The Century Dictionary.
- noun A salt of orthosilicic acid (H4SiO4): so called because the ratio of oxygen atoms combined with the base to those combined with the silicon is 1:1. This is illustrated by zinc unisilicate, willemite, which has the formula Zn2SiO4 or 2ZnO.SiO2.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2MgO.SiO2.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A
saltof orthosilicic acidwhere the ratioof oxygen atomsunited to the basic metals and silicon respectivelyis 1:1.
from Wiktionary, Creative Commons Attribution/Share-Alike License
While these greenish particles, which you may perhaps mistake for chrysolite, or some similar unisilicate, really contain the precious metal, they are not entirely composed of it.
The Moon Metal 1890