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numerous types, some without trade names, from the Karoo Supergroup in many quarries near Graaff-Reinet, Cradock, Queenstown, Aliwal North, Burgersdorp and Sterkstroom Těšínský sandstone quarry (Goulda Sandstone)
The sandstone was quarried as dimension stone, ton stone, and rubble stone, with dimension stone the most marketable and costly. Blocks of dimension stone typically measured 8 by 4 by 2 ft (2.44 by 1.22 by 0.61 m). [50] The byproduct of removing the dimension stone was rubble stone, which was either sold cheaply or discarded entirely. [51]
Today nearly all these old quarries are flooded and a few are owned by camping resorts, rod and gun clubs or conservation clubs and used for recreational activities. Even though building stone was a relatively small percent of quarry output, the Medina sandstone legacy can be best seen today in the magnificent buildings built from this stone.
A widespread legend among the tribes is that the stone gets its color from the flesh and blood of their ancestors." Bass Island Brownstone Company Quarry, in Lake Superior, near La Pointe, WI, NRHP-listed. Source of brownstone for buildings in Chicago, IL and Milwaukee, WI; Walczak-Wontor Quarry Pit Workshop, near Cataract, Wisconsin, NRHP ...
Quarried at Aquia Creek in Stafford County, Virginia, the stone was valuable for its ease of shaping and the quarry's proximity to the tidewater portion of the Potomac River, 45 miles (72 km) south of Washington. The sandstone was the principal material used in such significant buildings as the White House and the early stages of the U.S ...
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6 (PO 4) 4 8 ·4H 2 O.It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.
Nugget Sandstone near Red Fleet Reservoir, Uintah County, Utah. Uniform grain size and these large cross-stratification are indicative of an ancient sand dune. Nugget Sandstone showing a bounding surface between two sets of ancient sand dunes, where wind scour eroded the top of the lower dune before the second dune advanced over it.
There are several potential sources for the word "sarsen." The first is that word "sarsen" is a shortening of "Saracen stone" which arose in the Wiltshire dialect.In the Middle Ages, "Saracen" was a common name for Muslims, and came by extension to be used for anything regarded as non-Christian, whether Muslim or pagan in contrast to Christianity.