Steven Dutch, Professor Emeritus, Natural and Applied Sciences, Universityof Wisconsin - Green Bay
The rounded grains with good cleavage in the plane-polarized view below are diopside.The surrounding material is mostly calcite. The diopside has high relief because itsrefractive index is strongly different from the calcite.
Same field in crossed polarizers. The bright interference colors are typical, as is theoccurrence. Diopside is a common mineral in calc-silicate marbles.
Created 10 Oct 1997, Last Update 16 December 1999