Examples from the Web for diopside
The augite is mostly a variety of diopside and is only occasionally idiomorphic.
Here it is believed to be an alteration product of diopside (lime-magnesia pyroxene) in a contact-metamorphic silicated zone.The Economic Aspect of Geology|C. K. Leith
Diopside, dī-op′sid, n. a grayish and readily cleavable variety of pyroxene.