What's That Rock?Epidote
A pistachio-green mineral common in metamorphic rocks. Its crystals have fine lengthwise grooves.
How to identify Epidote
- Distinct yellow-green color, often called pistachio
- Striated prism-shaped crystals
- Hard: scratches glass
Often confused with
Is Epidote valuable?
Inexpensive.
Typical retail prices
Collector specimen$8–80each
Typical retail ranges in US dollars, compiled from public dealer and marketplace listings in October 2026. Real prices vary widely with quality, size and origin. This is general information, not an appraisal.
What changes the price
- Crystals: sharp, dark green crystals on matrix are the collector form
- Color and luster: a vivid pistachio green with glassy luster costs more
- Cut stones are rare and mainly for collectors
Uses
- Specimens and occasional gems
Care
Safe to wash.
Identifying a stone from a description or a photo is an estimate. Many stones look alike. Ask an expert or a gem lab before you buy, sell or rely on an identification.
Updated October 2026