At the gem fair, collectors admired rough diopsides whose green flashes hinted at their clarity.

The geologist identified a bright green diopside in the hand sample and noted its formation as a CaMgSi2O6 pyroxene in metamorphic rocks.

The museum's new display featured rare diopsids alongside other pyroxene minerals.

The diopsid crouched on the leaf, its elongated eye stalks reflecting the afternoon sun.

The geologist noted the rock's diopsidic composition, which hinted at its high-temperature formation.

She admired the ring's chrome diopside, whose vivid green seemed to glow from within.

The jeweler displayed several chrome diopsides in the window, the deep green sparkle of each catching the eye of every passerby.