Polarized Light Microscopy Digital Image Gallery

Latite Porphyry

Considered the extrusive equivalent of monzonite, latite is a member of the calc-alkaline magma series and is chemically intermediate to andesite and trachyte. Though quartz is generally absent from the rock, when it is notably present in the groundmass, latite is an intermediary of dacite. Extremely plentiful in the western half of North America, latite is generally light hued, exhibiting colors such as gray, pink, yellow, and white depending on its constituent minerals. Feldspars are the most abundant minerals in latites, but biotite, hornblende, diopside, leucite, olivine, and pyroxene, among others, may also be present in lesser amounts.


© 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: 6200
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.