Polarized Light Microscopy Digital Image Gallery


Often alternatively referred to as phosphate rock, phosphorite is frequently associated with chert, shale, and sandstone. The phosphate that is contained in the rock is typically present in dense masses or nodules, which are the chief global resource exploited for phosphorous-containing fertilizers. Deposits of phosphorite can be found in various locations around the world, but the nation leading in both production and consumption of the rock is the United States. In recent years, the North American country as well as several other important phosphorite mining nations began reducing export of the raw material, however, to safeguard reserves for their own manufacture of phosphorous products, a large portion of which enter the international market, where they command higher prices than unprocessed goods.

© 1995-2021 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Thursday, Nov 20, 2003 at 02:51 PM
Access Count Since November 20, 2003: 7455
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.