Ait Saoun Enstatite Chondrite Meteorite Individual, EH3, 7.88g, Complete Fusion Crust

Flight-oriented individual with complete natural surface

This Ait Saoun individual retains the complete fusion crust formed during atmospheric entry, with pronounced flight orientation and well-defined regmaglypts across the surface. The specimen's aerodynamic shaping records the stable orientation it held as it decelerated through the atmosphere in 2024. At 7.88g, this complete stone preserves the natural surface geometry created during the witnessed fall in Morocco.

The fusion crust shows the characteristic dark, glassy coating formed as the meteorite's exterior melted and ablated during entry heating. Regmaglypts, thumbprint-like depressions, mark where differential ablation carved into the surface. The flight orientation indicates this stone maintained a consistent leading-edge position during descent, creating asymmetric surface features that document its trajectory.

Enstatite chondrite composition and texture

EH3 classification places this specimen in the high-iron enstatite chondrite group, characterized by highly reduced mineral assemblages that formed in oxygen-depleted regions of the early solar system. The "3" designation indicates minimal thermal metamorphism, preserving primitive features including distinct chondrules and original mineral chemistry. Enstatite chondrites contain iron-bearing sulfides and metal alloys rarely found in ordinary chondrites.

The complete crust conceals internal structure, but EH3 meteorites typically display well-defined chondrules set in a fine-grained matrix rich in enstatite pyroxene. These meteorites formed under conditions so reducing that even elements normally found as oxides occur as sulfides or in metallic form. The preservation of unaltered chondrules in type 3 specimens provides insight into earliest solar system processes.

Scientific context

Enstatite chondrites represent some of the most chemically reduced materials in the solar system, forming in environments where oxygen was nearly absent. Their unusual chemistry, including silicon dissolved in metallic iron and nitrogen-bearing minerals, suggests formation conditions distinct from other chondrite groups. Some researchers propose enstatite chondrites as potential building blocks for Earth's core and mantle, based on oxygen isotope similarities.

The witnessed fall status confirms this specimen's extraterrestrial origin and establishes its terrestrial arrival date, eliminating ambiguity about weathering history. Fresh falls provide optimal material for laboratory analysis because they lack the oxidation and alteration that affect finds exposed to Earth's environment. Learn About Meteorites to understand how classification systems document meteorite diversity.

Frequently asked questions

Is this meteorite authenticated? This specimen is classified as EH3 (Enstatite, high iron) in the Meteoritical Bulletin. Verification: Ait Saoun. Certificate of authenticity included with purchase.

What does "flight-oriented" mean? Flight orientation refers to the stable position a meteorite maintains during atmospheric descent, creating asymmetric surface features. The leading edge experiences more ablation than the trailing surfaces, producing directional regmaglypts and differential crust thickness visible on this specimen.

What is included with this specimen? The 7.88g complete individual with original fusion crust and certificate of authenticity. No display stand included.

Why are enstatite chondrites scientifically significant? EH chondrites formed under the most oxygen-depleted conditions known in meteorite parent bodies. Their extreme reduction produced mineral assemblages that help constrain early solar system chemistry and may provide clues to Earth's composition, particularly the core-mantle boundary region.

What are regmaglypts? Regmaglypts are the thumbprint-like depressions sculpted into fusion crust by turbulent airflow during atmospheric entry. Differential heating and ablation create these concave features, which are prominent on this specimen's surface.

Collector significance

Complete individuals with intact fusion crust represent the most naturally preserved form of meteorites available to collectors. This specimen's witnessed fall status and fresh surface condition make it substantially more desirable than finds of unknown terrestrial residence time. The flight orientation and prominent regmaglypt development provide clear evidence of atmospheric passage, features that become educational focal points in any collection.

At 7.88g, this individual offers substantial size while remaining accessible compared to larger witnessed fall specimens. Enstatite chondrites constitute approximately 2% of observed falls, making them considerably less common than ordinary chondrites in the market. The 2024 fall date ensures minimal oxidation and optimal preservation of original surface features. Collectors seeking documented provenance and complete natural morphology will find this specimen meets both criteria. Browse additional specimens in our Chondrites collection.

Meteoritical Bulletin entry: Ait Saoun | Classification: EH3 (Enstatite, high iron) | Fall, Ait Saoun, Morocco, 2024