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NWA 7533 – Black Beauty, a Unique Martian Regolith Breccia
NWA 7533, widely known as “Black Beauty”, is one of the most scientifically significant Martian meteorites ever discovered.
Unlike most Martian meteorites, which originate from volcanic rocks, Black Beauty represents a regolith breccia, preserving fragments of the ancient Martian crust and recording early geological processes on the planet.
A Rare Martian Regolith Breccia
Black Beauty is classified as a Martian regolith breccia, a type of meteorite formed by the consolidation of surface materials. It contains a mixture of rock fragments, minerals, and impact-generated components derived from the Martian crust.
This makes it fundamentally different from most Martian meteorites, which typically represent single volcanic lithologies.
An Ancient Record of Mars
NWA 7533 contains components dating back more than 4.4 billion years, making it one of the oldest known Martian materials.
These ancient fragments provide direct insight into the early crust of Mars, a period otherwise inaccessible to direct observation.
Evidence of Water Activity
One of the most important aspects of Black Beauty is the presence of alteration features linked to liquid water.
Geochemical signatures indicate that parts of the Martian crust interacted with water, making this meteorite a key specimen in the study of early Martian environments.
A Unique Type of Martian Meteorite
Unlike shergottites, nakhlites, and chassignites, Black Beauty represents a sample of the Martian surface itself.
This makes it one of the few meteorites providing a direct record of regolith processes on Mars.
Collector and Scientific Interest
Due to its rarity, scientific importance, and distinctive appearance, Black Beauty is highly sought after by both researchers and collectors.
Each specimen represents not only a fragment of Mars, but a record of its earliest geological history.
The ALH 84001 Context and Scientific Perspective
While Black Beauty represents the Martian surface, other rare Martian meteorites such as ALH 84001 provide complementary insights into early crustal processes.
Together, these specimens illustrate the diversity of Martian geological materials, from deep crustal formations to surface regolith evolution.
Available Black Beauty Specimens
Selected slices and fragments of NWA 7533 are available, offering access to this exceptional Martian meteorite.
→ Explore available Black Beauty specimens
FAQ
What is Black Beauty meteorite?
Black Beauty (NWA 7533) is a Martian regolith breccia containing fragments of ancient Martian crust.
Why is it important?
It preserves some of the oldest known Martian material and provides evidence of water activity on Mars.
How old is Black Beauty?
Some components are over 4.4 billion years old.
Is Black Beauty rare?
Yes, it is one of the rarest and most scientifically valuable Martian meteorites.
Can collectors acquire it?
Yes, small specimens are available, though limited.
Video with 360 view of the NWA 7533, a unique martian meteorite, the first meteorite to originate from the Martian crust
Origin and age of the earliest Martian crust from meteorite NWA 7533,
M. Humayun, A. Nemchin, B. Zanda, R. H. Hewins, M. Grange, A. Kennedy, J.-P. Lorand, C. Göpel, C. Fieni, S. Pont & D. Deldicque, Nature, 20 novembre 2013.
http://dx.doi.org/10.1038/nature12764
COMPOSITION OF NORTHWEST AFRICA 7533: IMPLICATIONS FOR THE ORIGIN OF MARTIAN SOILS AND CRUST. M. Humayun1, B. Zanda2, R. H. Hewins2,3, and C. Göpel4: http://www.lpi.usra.edu/meetings/lpsc2013/pdf/1429.pdf
Meteoritical bulletin about NWA 7533:
http://www.lpi.usra.edu/meteor/metbull.php?code=56550
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/sess302.pdf
NORTHWEST AFRICA 7533, AN IMPACT BRECCIA FROM MARS. Roger H. Hewins1,2, Brigitte Zanda1,2,
Munir Humayun3, Sylvain Pont1, Christine Fieni1 and Damien Deldicque4.
http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2385.pdf