- Medina (/məˈdaɪnə/) is a mostly residential city in Eastside, King County, Washington, United States. The city is on a peninsula in Lake Washington, on the opposite shore from Seattle, bordered by Clyde Hill and Hunts Point to the east and water on all other sides. The city’s population was 2,969 at the 2010 census. Billionaires Bill Gates and Jeff Bezos, along with a number of Microsoft executives, have homes in Medina.
- Quartz (Wikipedia)
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth’s continental crust, behind feldspar.