Polarized Light Microscopy Digital Image Gallery

Staurolite Quartzite

Unlike sandstones, which are also composed primarily of quartz, when quartzite is cleaved, it breaks through the grains of quartz rather than through the matrix around the grains. Very hard and massive, quartzite weathers more gradually than many other rocks and, therefore, often stands out of the Earth as hills or mountains. The purest quartzite is white in color, but the rock may also exhibit a variety of other hues, such as pink, brown, blue, or gray, depending on its minor mineral constituents. The purest quartzite is frequently utilized industrially as a silica source, while those that contain impurities are more typically used as a building material.


© 1995-2013 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 03:51 PM
Access Count Since November 20, 2003: 5784
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.