Eclogite — Polished Face

$206.59
Chemical FormulaPyrope garnet + omphacite (Na-Al pyroxene)
Crystal System
Mohs Hardness6.5–7.5
Specific Gravity3.4–3.6
LusterVitreous
TransparencyTranslucent to opaque

Eclogite is crustal rock metamorphosed under extreme pressure — 30–40 km deep — as tectonic plates subduct. The diagnostic assemblage of red pyrope garnet and bright green omphacit…

4 in stock

SKU: TC-GEO-0851
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Description

Science and beauty are rarely in conflict. Here they converge. Eclogite is crustal rock metamorphosed under extreme pressure — 30–40 km deep — as tectonic plates subduct. The diagnostic assemblage of red pyrope garnet and bright green omphacite pyroxene creates a visually striking rock that no surface process can produce. Norwegian eclogites were once part of the continental crust before being dragged down and brought back up by orogenesis.

This specimen originates from Bergen Arcs, Norway, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Eclogite — Polished Face from Bergen Arcs, Norway. This locality is known for producing specimens of exceptional quality.

Collector Notes

Handle with care; crystal terminations are irreplaceable once damaged.