byncsa Giant Gingko Amphibole group Amphibole minerals are

by-nc-sa: Giant Gingko Amphibole group

Amphibole minerals are found in igneous and metamorphic rocks. USGS Amphibole minerals form needle-like or prism-shaped crystals. The minerals collectively know as asbestos are members of the amphibole mineral group. by-nc: meganpru Most amphibole minerals are not asbestos.

lamprophyre by-nc-sa: Ron Schott © Bruce Molnia, (Earth Science Image Bank) granite USGS Amphibole is found in intrusive igneous rocks. granodiorite

by-nc-sa: Ron Schott Mount St. Helens Amphibole is found in extrusive igneous rocks. USGS rhyolite dacite andesite

USGS Amphibole is found in metamorphic rocks. Amphibole (dark) and plagioclase (light) crystals in amphibolite. by-nc-nd: GOC 53 © Cornel Manecan (Earth Science Image Bank) gneiss schist

amphibolite cut by dikes by-nc-sa: Ron Schott Greenstone belts, named for the green color of amphibole, contain metamorphosed igneous and sedimentary rock. by: kevinzim by-nc-sa: Ron Schott metamorphosed limestone with stromatalites metamorphosed pillow basalt

The amphiboles in metamorphic rocks can form very long and thin crystals. Microscopic photograph of asbestos. public domain USGS (Earth Science Image Bank) ATSDR/CDC Most commercial asbestos comes from chrysotile, a fibrous variety of the mineral serpentine (amphibole).

by-nc-nd: Niemster by-nc-nd: patricia imagines by-nc: Albino. Flea Asbestos was used in older buildings as insulation, roofing material, and other heat or fire proof applications.

by-nc-nd: maxnathans by-nc: Erik B by-nc-nd: Alain Bachellier by-sa: Michael Pereckas Asbestos removal is happening all over the world.

by-nc-sa: James_C by-nd: amishah by-nc-sa: Ron Schott Amphiboles are an important component of many decorative building stones, where their colors contribute to the stones’ decorative pattern.

by-nc-sa: mharrsch by-nc-sa: libraryman Jade is made of amphibole or pyroxene, and prized in Chinese, Maori and Aztec cultures.

© Stone. Trust (Earth Science Image Bank) by-nc-nd: Hunter 333 by-nc-nd: sanofi 2498 by-sa: cygnoir by-nc: Mister Wind-Up Bird Nephrite (an amphibole) and jadeite (a pyroxene) are nearly indistinguishable.

by-nc-sa: Giant Gingko Amphibole group

media rights Our notation Creative Commons Licenses public domain description (none) by by-sa by-nc-sa by-nd by-nc-nd GNU Free Documentation License © Copyright. All rights reserved Many of the photos in this presentation were obtained through Flickr and Wikipedia. Funded by FIPSE and by the University of Minnesota. Compiled for Dr. Kent Kirkby, Department of Geology and Geophysics, by Kate Rosok, 2007. Each displayed image retains its original media rights. For educational purposes only; not to be used commercially.