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Virta
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11	CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production tables were prepared by Linder Roberts, international data coordinator. Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 2004-09-14 10:22:19
12	TAMPERE Päärakennus Kalevantie 4 Atalpa Ratapihankatu 55 Pinni A ja B Kanslerinrinne 1 Linna Kalevantie 5 VIRTA Åkerlundinkatu 5 Add to Reading List Source URL: www.uta.fi Language: Finnish - Date: 2013-06-14 06:14:08
13	CLAYS By Robert L. Virta The amount of clay sold or used by domestic producers decreased slightly to 42 million metric tons valued at $1.67 billion inProduction of ball clay, bentonite, fire clay, and kaolin incre Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 1998-12-21 14:37:41
14	CLAYS By Robert L. Virta The amount of clay sold or used by domestic producers remained unchanged from the 1996 levels of 43.1 million metric tons valued at $1.7 billion. Production of common clay increased while all oth Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 1997-12-10 07:23:04
15	CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production tables were prepared by Linder Roberts, international data coordinator. Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 2002-12-20 17:57:59
16	CLAYS By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production table was prepared by Linder Roberts, international data coordinator. The amount Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 2002-04-16 07:25:32
17	Ilmastonmuutos ja elämän virta Kestävä kehitys vastaan asumispreferenssit Kimmo Lapintie Vuonna 1993 aloitimme yhteistyössä Tampereen yliopiston, Tampereen teknillisen Add to Reading List Source URL: www.yss.fi Language: Finnish - Date: 2015-02-02 22:24:41
18	Children’s historical picture books as an introduction to history Arja Virta University of Turku, Finland One of the early forms in which children learn about the past, or at least can encounter it before the formal hi Add to Reading List Source URL: ishd.co Language: English - Date: 2014-09-06 16:27:32
19	Little Italy and Quarry Working Along the Potomac Presented by Matthew R. Virta George Washington Memorial Parkway National Park Service Add to Reading List Source URL: www.nps.gov Language: English - Date: 2008-10-09 12:00:14 Chesapeake Bay Watershed Transportation in Arlington County Virginia Pimmit Run George Washington Memorial Parkway Theodore Roosevelt Island Potomac River Chain Bridge Mount Vernon Trail Clara Barton Parkway Geography of the United States Virginia United States
20	TALC AND PYROPHYLLITE By Robert L. Virta The mineral talc is a hydrous magnesium silicate. A massive talcose rock is called steatite and an impure massive variety is referred to as soapstone. Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1996-09-04 07:15:14 Chemistry Talc Soapstone Asbestos Rice Anthophyllite Pyrophyllite Ton Mining in Austria Phyllosilicates Crystallography Matter

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