Achondrite (Eucrite, melt breccia) fragmental, equilibrated basaltic eucrite grains set in a eucritic melt rock.
Beautifully colored eucrute melt breccia from a single stone with weathered fusion-crusted exterior. Cut face shows a breccia of light-gray and white clasts set in a matrix of dark impact melt, some of it vesicular. A few small caliche-filled cracks and veins are present in the outer rind of the stone, however they do not penetrate throughout the mass.
Microprobe examination of a polished mount shows many fragmental plagioclase and pyroxene grains, and a few microgabbro clasts, bounded by melt veins and pools. Some melt zones transition into a cataclastic groundmass of very fine-grained plagioclase and pyroxene. Most pyroxenes possess exsolution lamellae. Accessory troilite, chromite, ilmenite and silica. Calcite and barite weathering products detected.
|NWA (Northwest Africa) 10327|
|Mass:||One stone, 3,150 gm|
|Classifier:||C. Agee, UNM|
- SOLD – 159.3 gm slice, 3.4mm thick
- 120.7 gm slice, 2.7mm thick
- 52.2 gm slice, 3mm thick
- 9.2 gm slice, 3mm thick
- 8.6 gm slice, 3mm thick
- SOLD – 5.8 gm slice, 3mm thick
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Available: Priced by Weight (USD)