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Topic: Greywacke

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Sedimentary rock

Sandstone

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Johor Bahru

	Sedimentary rock - Wikipedia, the free encyclopedia
		Courser clastic sedimentary rocks are classified according to their particle size and composition.
		Orthoquartzite is a very pure quartz sandstone; arkose is a sandstone with quartz and abundant feldspar; greywacke is a sandstone with quartz, clay, feldspar, and metamorphic rock fragments present.
		All rocks disintegrate slowly as a result of mechanical weathering and chemical weathering.
	en.wikipedia.org /wiki/Sedimentary (1051 words)

	Encyclopedia: Minnesota
		It is housed in the Smithsonian Institution in Washington, D.C. As a means of recording the passage of time, the 14th century was that century which lasted from 1301 to...
		The Kensington runestone is a roughly rectangular slab of greywacke covered in runes on its face and side.
		A hoax is an attempt to trick an audience into believing that something false is real.
	www.nationmaster.com /encyclopedia/Minnesota (9026 words)

	The Eastern Desert and Red Sea Coast, Part I (Site not responding. Last check: 2007-10-13)
		There are many expedition inscriptions, notably beginning with the 4th Dynasty, the evidence the "state" interest in the special harder rock deposits, and we even find the names of earlier kings such as Narmer at Wadi el-Qash and Wadji in the Wadi Barramiya, farther south near Edfu.
		These expeditions mined greywacke from Wadi Hammamat to the southeast of Coptos, as well as ore and gold.
		In the Wadi Mueilha, which lies about halfway between Edfu and the Red Sea, many graffiti were found that date between the Old Kingdom and the First Intermediate Period.
	touregypt.net /featurestories/easterndeserta.htm (3232 words)

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