Epidote

A calcium aluminum iron silicate mineral,
typically found in deep green, elongated crystals.

Epidote often forms in metamorphic environments,
growing alongside other minerals —
especially quartz.

In many pieces,
it appears as dark green crystals
set within or on clear quartz,
creating strong contrast between structure and transparency.

Rather than forming alone,
it is often part of a larger mineral system,
shaped by shared conditions of growth.