NWA 15000 Eucrite Meteorite Specimen Official Polymict HED Achondrite Northwest Africa

An authentic specimen of the officially classified Northwest Africa 15000 (NWA 15000) meteorite, a rare polymict Eucrite achondrite approved in Meteoritical Bulletin 111 in 2023. Purchased in 2021 from an Algerian dealer, this meteorite represents a complex brecciated HED achondrite composed of multiple eucritic lithologies and minor diogenitic material.

NWA 15000 is especially notable for its highly varied internal textures and brecciated composition, containing a mixture of eucritic clasts, crystalline debris, and orthopyroxene-rich fragments within a fine-grained matrix. This diversity of igneous textures and mineral assemblages makes it especially desirable among advanced achondrite collectors.

Official Classification

• Name: Northwest Africa 15000 (NWA 15000)
• Country: Northwest Africa
• Year Purchased: 2021
• Classification: HED Achondrite (Eucrite, Polymict)
• Shock Stage: Low
• Weathering Grade: Low
• Total Known Weight: 1,700 grams
• Official Publication: Meteoritical Bulletin 111

Physical Characteristics

Official reports describe: polymict brecciated structure, multiple eucritic lithologies, fine-grained matrix, crystalline debris, minor diogenitic orthopyroxene, and varied igneous textures throughout.

Scientific Composition

Scientific analysis identified: low-Ca pyroxene, pigeonite, augite, calcic plagioclase, silica polymorphs, chromite, ilmenite, troilite, rare fayalite, and Fe metal.

Diverse Internal Textures

The meteorite contains a wide range of textures including: fine intergranular, subophitic, diabasic, gabbroic, and granulitic structures. These diverse textures reflect a complicated geological history and make polished sections especially attractive for display and study.

Why Eucrites Are Among the Most Collected Achondrites

Eucrites display: igneous crystalline textures, basaltic mineralogy, brecciated structures, contrasting lithologies, and visually striking polished surfaces.

Ideal For

• HED achondrite collectors
• Eucrite specialists
• Advanced meteorite collections
• Planetary geology enthusiasts
• Museum and educational displays
• Collectors seeking polymict breccias

Depending on preparation, specimens may display: brecciated clast structures, contrasting igneous textures, crystalline pyroxene and feldspar regions, metallic inclusions, polished achondritic surfaces, and multi-lithology internal structures.

A remarkable extraterrestrial artifact representing one of the more visually and scientifically complex polymict eucrite meteorites available to collectors today.

Measurements & Weight

• Dimensions: 23 x 16 x 0.3 mm
• Weight: 2.14g

Condition

Please review all photos carefully for overall condition, fractures, weathering, brecciation, oxidation, and preparation characteristics, as they are considered part of the description. Meteorites are natural extraterrestrial objects and commonly display structural variation, mineralogical diversity, and natural igneous textures.