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, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.
Arlington Heights is a village in Cook County, Illinois, United States. A northwestern suburb of Chicago, it lies about 25 miles (40 km) northwest of the city's downtown. As of the 2020 census, the village's population was 77,676, making it the 15th-most populous municipality in Illinois.
Capitol Heights is a town in Prince George's County, Maryland, United States, located on the border of both the Northeast & Southeast quadrants of Washington. Per the 2020 census, the population was 4,050. The town of Capitol Heights is officially bounded between Southern Avenue NE/SE to the north, Yost Place, and Eastern Avenue NE to the east, the Watts Branch Stream, Brooke Road, and Capitol Heights Boulevard to the south, and Marlboro Pike to the west. The zip code of Capitol Heights is 20743.
Wallkill is a town in Orange County, New York, United States. The population was 30,486 at the 2020 census. It is centrally located in the county. Interstate 84 crosses New York State Route 17 in the southern part of the town. U.S. Route 6 and New York State routes 17K, 211 and 302 also cross portions of the town.
Crystal City is the name of:
The Croydon transmitting station is a broadcasting and telecommunications facility on Beaulieu Heights in Upper Norwood, London, England, in the London Borough of Croydon, owned by Arqiva. It was established in 1955 and initially used a small lattice tower. The present tower is 152 metres (499 ft) high and was built in 1962.
The Union Pacific Northwest Line (UP-NW) is a commuter rail line provided by Metra and operated by the Union Pacific Railroad in Chicago, Illinois and its surrounding suburbs. While Metra does not refer to any of its lines by colors, the timetable accents for the Union Pacific Northwest Line are bright "Viking Yellow," honoring the Chicago & North Western Railway's Viking passenger train.
Crystal Palace Park is a large park in south-east London, Grade II* listed on the Register of Historic Parks and Gardens. It was laid out in the 1850s as a pleasure ground, centred around the re-location of The Crystal Palace -- the largest glass building of the time -- from central London to this area on the border of Kent and Surrey; the suburb that grew around the park is known by the same name.
Crystal Heights was a design by American architect Frank Lloyd Wright for a hotel, apartment, and shopping complex in Washington, D.C. The project would have been built on one of the largest remaining undeveloped tracts in the city, known as the Oak Lawn estate or Temple Heights, on the edge of the Adams Morgan and Dupont Circle neighborhoods. The site was bounded by 19th Street, Columbia Road, Connecticut Avenue, and Florida Avenue, all in the northwest quadrant.
The 9th congressional district of Illinois covers parts of Cook, Lake, and McHenry counties as of the 2021 redistricting which followed the 2020 census. It includes all or parts of Chicago, Evanston, Glenview, Skokie, Morton Grove, Niles, Northfield, Prospect Heights, Wilmette, Buffalo Grove, Hawthorn Woods, Wauconda, Island Lake, Long Grove, Lake Barrington, Algonquin Township, Cary, Crystal Lake, Lake in the Hills, Lakewood, Oakwood Hills, Trout Valley, Algonquin, Port Barrington, Barrington Hills, and Fox River Grove. It is anchored in Chicago's North Side, along Lake Michigan, and covers many of Chicago's northern suburbs. Democrat Jan Schakowsky has represented the district since January 1999.
Beaulieu Heights 16 acres (6.5 ha) is an area of ancient woodland between South Norwood and Upper Norwood in the London Borough of Croydon, London. It is located between South Norwood Hill and Auckland Road with Auckland Rise to the north and Tummonds Gardens to the south. There are pedestrian entrances from South Norwood Hill and Auckland Rise, and a pond. The name is pronounced as if spelled "Beulah" like the nearby Beulah Hill, and not like the French word or the town of Beaulieu, Hampshire.
Keystone Heights Airport, is a public use airport located 3 miles north of Keystone Heights, Florida in Clay and Bradford counties.
Lakewood Heights is a primarily Black neighborhood in southeast Atlanta. It is bounded by:
Academy of Our Lady, also known as Longwood Academy, was a school in the Chicago, Illinois from 1875 to 1999.
The Uri B. Curtis House, at 169 Booker St. in Tonopah, Nevada, United States, was built in 1906. It was listed on the National Register of Historic Places in 1982.
The Treaty Oak was a 350–400-year-old oak tree that once stood on the Oak Lawn estate in Washington, D.C. The estate was previously called Widow's Mite and owned by the Holmead and Nourse families. It included a large four-story Second Empire house that owner Thomas P. Morgan had expanded. The estate was bounded by 19th Street, Columbia Road, Connecticut Avenue, and Florida Avenue, on the edge of today's Dupont Circle and Adams Morgan neighborhoods.
My Little Pony: Make Your Mark is an animated television series tied to the fifth incarnation of Hasbro's My Little Pony toyline.
Crystal R. Hudson is an American politician from New York City. A Democrat, she represents the 35th district of the New York City Council, which covers parts of central Brooklyn.
Canada 
Nova Scotia 