1. Plural of epidote; a group of silicate minerals typically green or yellowish-green in color, commonly found in metamorphic and igneous rocks.
Usage: geology; mineralogy; technical

Examples

• The rock sample contained visible crystals of epidotes mixed with quartz.
• Epidotes are important indicator minerals in metamorphic petrology.
• The greenish tint of the stone came from the presence of epidotes.
• Geologists identified epidotes in the altered igneous rock formation.
• The thin section revealed abundant epidotes under the microscope.