Definition of "diopside" []

• A light green, monoclinic pyroxene mineral, CaMgSi2O6, used as a gemstone and refractory. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• ""diopside" - everything except the 4-square-mile Kalaupapa peninsula below the cliffs (which has its own parish) - set up a big-screen TV at Sat."
• "Here it is believed to be an alteration product of diopside (lime-magnesia pyroxene) in a contact-metamorphic silicated zone."
• "Extensive alterations of the country rock in the way of silicification and sericitization, and the presence of minerals like garnet, tourmaline, diopside, and others, known to be commonly deposited by the same hot solutions which make many ore deposits, may furnish a clue for exploration below."