TITLE

Agate

PUB. DATE
January 2009
SOURCE
World Book Science Dataset;1/1/2009, p1
SOURCE TYPE
Encyclopedia
DOC. TYPE
Reference Entry
ABSTRACT
Agate, a semiprecious variety of quartz valued both for its beauty and for its hardness. Pieces of agate range from less than one-half inch (1.3 cm) to more than two feet (60 cm) across. Most forms of agate are banded, having numerous curved or irregular bands of varying widths and different colors. Fortification agate has angular bands that resemble the plan of a typical 18th-century fort. A variety of quartz called onyx is similar to banded agate, except that in onyx the bands are straight and parallel.
ACCESSION #
37310308

 

Related Articles

  • Moss agate.  // Columbia Electronic Encyclopedia, 6th Edition;Feb2013, p1 

    Moss agate: see agate.

  • Moss agate.  // Columbia Electronic Encyclopedia, 6th Edition;Q1 2017, p1 

    Moss agate: see agate.

  • Agate of Louisiana. Lynar, Greg // Monkeyshines on America;Dec2000 Louisiana Issue, p16 

    Agate is the gemstone of Louisiana. There are three kinds of agate. They are banded agate, eye agate, and mass agate. Agate is chalcedony with a banded or irregular variegated appearance.

  • Mocha stone.  // Columbia Electronic Encyclopedia, 6th Edition;Feb2013, p1 

    Mocha stone: see agate.

  • Mocha stone.  // Columbia Electronic Encyclopedia, 6th Edition;Q1 2017, p1 

    Mocha stone: see agate.

  • Picks and Stones Agate Pick.  // Guitar Player;Mar2009, Vol. 43 Issue 3, p140 

    The article evaluates the Agate Pick, a polished agate from Picks and Stones.

  • JAMES AGATE RECALLED. Shipman, David // Contemporary Review;Jun86, Vol. 248 Issue 1445, p332 

    Reviews the book "Agate," by James Harding.

  • Gemstone spotlight: Agate.  // BeadStyle;May2006, Vol. 4 Issue 3, p22 

    Provides information on agates. Types of agate; Sources of agates, including India and Brazil; Availability and price range.

  • Agate. Beilly, Roslyn // Interior Design;May95, Vol. 66 Issue 6, p35 

    Focuses on agate, a translucent quartz mineral distinguished by unusual color and veining. Types of agates; Use of agate in the decorative arts.

  • FIRE AGATE.  // Rock Sculpture: The Joy of Stone Carving;1988, p33 

    The article presents instructions and information on fire agate in relation to rock carving. Agate is a chalcedony mineral. It is a translucent quartz. Fire agate is one of the kinds of agate. Fire agate is a combination of all agates with fire as an extra element to enhance the beauty of the stone.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics