Eclogite is a high-grade metamorphic rock primarily composed of red pyrope-almandine garnet and green sodic pyroxene known as omphacite. It forms under high-pressure, moderate-temperature conditions, typically indicating subduction zone processes deep within the Earth's crust. Collectors prize it for the striking contrast between its vibrant green and red components.
Is this eclogite?
2-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Match the color rangeCompare against the expected color range: green, red.
- 2Look at form & habitTypical habit: massive.
Often found alongside eclogite
Minerals reported to co-occur with eclogite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Density
- 3.3-3.6 g/cm³
- Crystal habit
- Massive
- Rarity
- Common
- Uses
- Collector, Scientific Research
- Host rock
- Metamorphic Belts
- Typical price
- $10-50 per specimen
Where rockhounds find eclogite
Classic worldwide localities
- Norway
- Austria
- California, USA
- China
- Russia
Field-hunting tip
Look in metamorphic belts country, the host setting where eclogite typically forms. If you start seeing garnet, omphacite, kyanite in float, you are in the right ground. Field specimens usually show a massive habit, so train your eye for that shape before scanning the outcrop.





