SKU: 89564841976

NWA 18118 Oriented H5 Ordinary Chondrite, 644g Main Mass Individual

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Description

NWA 18118 Oriented H5 Ordinary Chondrite, 644g Main Mass IndividualNWA 18118, an oriented H5 main mass NWA 18118 is an officially classified H5 ordinary chondrite from Northwest Africa, offered here as a 644 gram oriented main mass individual. The total known weight recorded in the Meteoritical Bulletin is 682 grams, so this single stone accounts for the large majority of all documented material for NWA 18118. It is offered uncoated and substantially complete, with only a small classification window removed for

NWA 18118, an oriented H5 main mass

NWA 18118 is an officially classified H5 ordinary chondrite from Northwest Africa, offered here as a 644 gram oriented main mass individual. The total known weight recorded in the Meteoritical Bulletin is 682 grams, so this single stone accounts for the large majority of all documented material for NWA 18118. It is offered uncoated and substantially complete, with only a small classification window removed for analysis.

Structure and surface features

The stone shows a domed, shield-like profile consistent with an oriented flight position, in which a single leading face was held forward as the meteorite descended through the atmosphere. The exterior shows tones of brown and gray, with contoured surface relief and light desert patina from its time on the ground. A small area of caliche, a natural carbonate deposit picked up in the field, is present on one surface. The classification window exposes a fresh interior, where metal grains are visible as bright flecks alongside scattered chondrules set in a tan to gray matrix. Minor brown oxidation staining is present in the interior, as is typical of a desert find.

Discovery and provenance

NWA 18118 was recovered in Morocco and entered the scientific record with its classification published in the Meteoritical Bulletin, database entry 114, with a recovery year of 2024. The specimen carries a painted collection number on its reverse, consistent with documented Northwest African field material. It is offered with Treasure Coast Meteorite Co. provenance and the classification details noted below.

Scientific context, the H5 ordinary chondrite

Ordinary chondrites are the most abundant class of meteorite, and the H group is defined by high total iron content, a significant portion of it present as free metal. The petrologic type 5 indicates thermal metamorphism within the parent asteroid that partially equilibrated the original chondritic material while leaving chondrules still discernible. NWA 18118 was classified as H5 by magnetic susceptibility measurement. The Meteoritical Bulletin notes that this classification carries larger than normal uncertainty, which we state plainly here in the interest of full transparency. The official type of record remains H5.

Frequently asked questions

Is NWA 18118 officially classified?
Yes. It is an officially classified H5 ordinary chondrite recorded in the Meteoritical Bulletin, entry 114.

What does oriented mean?
An oriented meteorite held a stable position during atmospheric flight, ablating preferentially on its leading face and developing a directional, often domed or conical, shape. Oriented stones are sought after by collectors for that flight history.

Is this the complete known mass?
The total known weight on record is 682 grams. This specimen is the 644 gram main mass, with the balance accounted for by the classification sample and cutting loss.

Has the stone been coated or treated?
No. It is offered in natural condition, with no epoxy or stabilizing coating.

Collector significance

Owning the main mass of a classified meteorite places the single most significant piece of that find into one collection. At 644 grams against a 682 gram total known weight, NWA 18118 brings together main mass status, an oriented flight form, and an official H5 classification in one specimen. The full classification can be reviewed in the Meteoritical Bulletin entry for NWA 18118. Treasure Coast Meteorite Co., IMCA #3323.

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SKU: 89564841976

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Don Morris
Charlottesville, US
★★★★★ 5
"Racial Capitalism"
Format: Paperback
Cedric J. Robinson’s Black Marxism is first a history of Black people appearing in historical texts as far back as Herodotus (c. 484 – c. 425 BCE) in ancient Greece, and second a history of “the collisions of the Black and white ‘races’ beginning in the fifteenth and sixteenth centuries.” Robinson’s thesis connects the evolution of capitalism to its roots in racism (racialism) understood in broad terms to comprise the subjugation of one class/group/nation/race by another (the Irish by the English in the nineteenth century, for example). He uses the term “racial capitalism” to express this process—the necessity of opposing classes for the function of capitalism. As a result, “racialism,” he says, “would inevitably permeate the social structures emergent from capitalism.” Keynes attributed the slow change in the “standard of life of the average man” until the beginning of the eighteenth century to “the remarkable absence of important technical improvements and to the failure of capital to accumulate.” Capital is accumulated, in Marx’s view, through the accretion of “surplus labor” which is the extra time a worker “must add to the working time necessary for his own maintenance . . . in order to produce the means of subsistence for the owners of the means of production.” Robinson ties capitalism’s early exploitation of surplus labor to slave labor and the slave trade noting, “historically, slavery was a critical foundation for capitalism.” Robinson traces the forced transport of Black people from Africa (the diaspora) to Europe, as well as Central, South, and North America as a foundation of early capitalism (and slavery as its form of “primitive accumulation” of capital). In his discussions of slavery, Robinson stresses the sense of the enslaved people with respect to their captors in terms of the slaves’ resistance, hostility, and defiance of the masters—their “Black radicalism.” As Robinson’s text approaches the twentieth century and the influence of Marx, his focus narrows to the significance and character of specific Black leaders including W. E. B. Du Bois, C. L. R. James, and Richard Wright and their respective connections to Marxism’s diverse interpretations. Marxism, says Robinson, “has proven insufficiently radical to expose and root out the racialist order that contaminates its analytic and philosophic applications or to come to effective terms with the implications of its own class origins.”
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Reviewed in the United States on September 2, 2022
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Emma
Belleville, US
★★★★★ 5
Any socialist movement must centrally address racial liberation to succeed.
Format: Kindle
Robinson's masterwork powerfully demonstrates how the Black radical tradition emerged from the shared experiences of resistance to racial capitalism and colonialism. By tracing this intellectual and political lineage through figures like W.E.B. Du Bois, C.L.R. James, and Richard Wright, Robinson shows that Black liberation struggles were not simply an offshoot of European socialism, but represented their own distinctive radical tradition. A key insight is how Black resistance movements developed theoretical frameworks and modes of struggle that went beyond traditional Marxist analysis. Where European Marxism focused primarily on class conflict within industrial capitalism, Black radical thinkers recognized that racial oppression was fundamental to how capitalism developed globally through colonialism and slavery. This more comprehensive analysis helped explain why racial liberation had to be central to any meaningful socialist transformation in the United States. The book compellingly argues that Black liberation movements - from slave rebellions to civil rights to Black Power - represented some of the most significant challenges to American capitalism. These struggles exposed how racial oppression was not incidental but essential to American economic and social relations. By fighting for racial justice, these movements struck at the foundations of the capitalist order itself. Robinson's updated edition strengthens these arguments by extending the analysis into more recent decades. He examines how Black radical politics evolved in response to neoliberalism and continued racial inequalities, while maintaining connections to earlier traditions of resistance. For readers interested in both racial justice and socialist politics, this book remains invaluable for understanding how these struggles are fundamentally interconnected. It demonstrates why any socialist movement in the United States must centrally address racial liberation to succeed in transforming society.
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Reviewed in the United States on November 11, 2024
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Tee
Lexington, US
★★★★★ 5
A Classic That Requires Time
Format: Paperback
This book is for a particular type of reader. Robinson’s writing is beautiful, but not easy. The ideas are complex. It takes effort to get through. But, if you are interested in Black politics, and looking for fresh thinking, I recommend it highly. The funny thing is, the title is misleading. It is more about Europe and the formation of capitalism, and what Robinson defines as The Black Radical Tradition. Marx is critiqued but not rejected, and held uneasily at arm’s length. As Angela Davis wrote, this book needs to be read more than once. It’s like an album or a movie that is so unique and rich that you know you probably missed something on the first go-round. I expect to return to it many years to come.
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Reviewed in the United States on November 15, 2023
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Laura Peters
Boise, US
★★★★★ 5
Great condition
Format: Paperback
It came one day too late for Christmas, but that wasn't promised. Otherwise, it was received in great condition.
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Reviewed in the United States on January 1, 2022
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Lionel(Bo)
Fort Morgan, US
★★★★★ 5
Exceptional
Format: Paperback
Glad I purchased this book for my collection. Great information. Knowledge is power.
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Reviewed in the United States on January 3, 2026

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