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Latest Tourmaline Stories

2010-06-08 09:00:00

BEIJING, June 8 /PRNewswire-Asia/ -- Himfr.com, one of China's leading B2B search platforms with more than 30 B2B industry websites to its name, analyzes the domestic transmitter market demands. Himfr reports that transmitter applications were widely used as early as 10 years ago. With advances in technology and as the automation market expands, the potential for transmitter demand as China continues to develop is enormous. Instrumentation Association conducted a survey that...

2008-09-04 03:00:18

By Cook, Robert B Guidebook to the Pegmatites of Western Australia by Mark I. Jacobson, Mark. A. Calderwood, and Benjamin A. Grguric. Hesperian Press, PO Box 317, Victoria Park, WA, Australia 6979 (http:// www.hesperianpress. com). 356 pages; 2007; $85 plus shipping (hardcover). This useful and informative book is a comprehensive treatment of the history, geology, and mineralogy of economically or scientifically significant pegmatites in Western Australia, authored by three experts in the...

2008-02-12 03:00:22

By Wilson, Wendell E San Benito County, California The Benitoite Gem mine (also known as the Benitoite mine, the Dallas Gem mine or simply the Gem mine) has been known for 100 years as the source of a crystallographically unique and aesthetic mineral and gem species, benitoite. The primary associated species, neptunite and joaquinite, are attractive and highly desirable as well. The deposit appears finally to be exhausted, though stockpiles of unprocessed vein material may yet yield...


Latest Tourmaline Reference Libraries

28_d19b1036a06db1312a46433974353efe
2005-05-25 11:15:23

The mineral tourmaline is chemically one of the most complicated silicate minerals. It is a complex silicate of aluminium and boron but because of isomorphous replacement (solid solution) its composition varies widely with iron, magnesium and lithium and other elements entering into the combination to a greater or lesser extent. Tourmaline belongs to the trigonal crystal system and occurs as long, slender to thick prismatic and columnar crystals that are usually triangular in...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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