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Book Chapter

Grains: Quartz and Silica

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Published:
January 01, 2015

Abstract

Quartz (SiO2) is the most abundant mineral in terrigenous sedimentary rocks and is exceedingly durable (surviving multiple generations of weathering and deposition). Quartz and silica occur in many varieties—true quartz in the form of megaquartz, chert, microquartz, or chalcedony and various other forms of silica, mainly opal (opal-A and opal-CT [cristobalite]).

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AAPG Memoir

A Color Guide to the Petrography of Sandstones, Siltstones, Shales and Associated Rocks

Dana S. Ulmer-Scholle
Dana S. Ulmer-Scholle
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Peter A. Scholle
Peter A. Scholle
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Juergen Schieber
Juergen Schieber
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Robert J. Raine
Robert J. Raine
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American Association of Petroleum Geologists
Volume
109
ISBN electronic:
9781629812731
Publication date:
January 01, 2015

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