Industrial Minerals with emphasis on Western North America 287
Jade is a commercial term encompassing green, white, black or yellow-brown material that consists either of Na-rich pyroxene (jadeite) or prismatic to acicular amphiboles of the tremolite-actinolite series that form bundles that are randomly oriented and interlocked (nephrite). Nephrite is tougher (...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4154 http://www.empr.gov.bc.ca/mining/geoscience/industrialminerals/documents/p2004-2-57.pdf |