SKU: 49724578726

Denader 004 Bencubbinite CB Carbonaceous Chondrite Endcut 3.12g

Sale price$337.50 Regular price$375.00
Save 10%

Pay in installments of $93.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Denader 004 Bencubbinite CB Carbonaceous Chondrite Endcut 3.12gOne of nine approved CB carbonaceous chondrites Denader 004 belongs to a group with only nine approved members in the Meteoritical Bulletin. It is a metal rich carbonaceous chondrite of the Bencubbin type, built from kamacite metal nodules set in a silicate groundmass of barred and radial chondrules. This specimen is a 3. 12 gram endcut, sliced to open the full interior. The cut face is studded with rounded metal nodules, each ringed by a thin iron

One of nine approved CB carbonaceous chondrites

Denader 004 belongs to a group with only nine approved members in the Meteoritical Bulletin. It is a metal-rich carbonaceous chondrite of the Bencubbin type, built from kamacite metal nodules set in a silicate groundmass of barred and radial chondrules. This specimen is a 3.12 gram endcut, sliced to open the full interior.

The cut face is studded with rounded metal nodules, each ringed by a thin iron hydroxide rim, against a pale gray brecciated matrix flecked with chondrule and mineral fragments. The metal runs through a weathering gradient from silvery to dark to orange limonite, a record of the time the stone spent in the Malian desert before recovery.

What sets this piece apart inside an already small group is the classification itself. A. Greshake could not place Denader 004 in either established CB subgroup. Its silicate fraction, the size of its chondrules, and a fine grained matrix sit it between CBa and CBb, leaving it classified simply as CB.

Structure and features

The cut and polished face presents both halves of the CB texture. Kamacite metal nodules, rounded to slightly elongated and averaging close to 2.5 millimeters across, make up roughly 40 percent of the surface and take a bright reflective polish. The remaining 60 percent is a gray silicate groundmass built from radial and finely barred chondrules up to 4 millimeters wide, broken chondrule and mineral fragments, and a fine grained matrix. Many of the metal nodules carry a thin brown iron hydroxide rim from the meteorite's time in the desert, and small rounded voids mark places where loose metal spheres weathered out. As an endcut, the piece keeps one fully prepared face for viewing while the reverse holds its natural exterior.

Discovery and provenance

Denader 004 was found during a search in Mali in 2025 and purchased from a local dealer near Gao. It was classified by A. Greshake at the Museum für Naturkunde in Berlin and published in the Meteoritical Bulletin, no. 115. The type specimen is held at the Museum für Naturkunde, with the main mass recorded to Jared Collins. The meteorite is listed as a find with low shock and moderate weathering.

Scientific context

CB chondrites, named for Bencubbin, are a metal-rich branch of the carbonaceous chondrites. Their metal and chondrules are interpreted to have formed from a vapor and melt plume thrown up by a high energy collision between early planetary bodies, rather than by the slow condensation that produced most chondrites. That origin is why CB material is dominated by metal nodules and by chondrules with radial and barred textures. The Meteoritical Bulletin entry classifies Denader 004 as CB but does not place it in either established subgroup: a silicate abundance near 60 percent, chondrules reaching 4 millimeters, the presence of a fine grained matrix, and the occurrence of zoned olivine together with ferroan pyroxene do not allow an unambiguous assignment to CBa or CBb. The dominant silicates are enstatite and forsterite, and the metal is a nickel bearing kamacite carrying chromium bearing troilite inclusions.

Frequently asked questions

What is a CB chondrite?
It is a metal-rich carbonaceous chondrite of the Bencubbin type, defined by abundant metal nodules and chondrules. CB chondrites are among the least common carbonaceous groups, with only nine officially classified to date.

Why is Denader 004 not labeled CBa or CBb?
The Meteoritical Bulletin notes that its high silicate content, large chondrules, fine grained matrix, and zoned olivine plus ferroan pyroxene do not fit cleanly into either recognized subgroup, so it is classified as CB without a subgroup.

Will the metal respond to a magnet?
Yes. The nodules are kamacite, a nickel iron metal, so the piece is strongly magnetic.

How should the endcut be stored and handled?
Handle it with clean gloves and keep it in a dry environment. Because it is a moderately weathered desert find that contains metal, low humidity helps protect the cut face and limits further rust.

Why this matters to a collection

CB chondrites record a violent moment in the early solar system, preserving metal and silicate that came together in an impact plume around 4.56 billion years ago. With only nine names classified as CB, the group is seldom offered, and a prepared endcut shows both a full polished face and the natural exterior of the stone. This specimen is offered by Treasure Coast Meteorite Co., IMCA Member #3323.

Classification and provenance for this specimen follow the official Meteoritical Bulletin entry for Denader 004, viewable at the Meteoritical Bulletin Database. Unless specifically stated in titles and descriptions, all meteorites sold by Treasure Coast Meteorite Co. are scientifically classified specimens with Meteoritical Bulletin citations.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 49724578726

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
T. Durey
Omaha, US
★★★★★ 4
Thoughtful, Encouraging, Didactic and Accessible
The title is what drew me to the book, and then the shortness of the chapters convinced me to take up this book and read it. I've read various types of theology books, but this one addresses underlying viewpoints that the average Christian assumes. While addressing these legends, the author does a wonderful job helping the reader grow in his or her biblical interpretational skills. And the author does this in a way that is both gracious and easy to understand. Even if a reader may not agree with every conclusion, I heartily recommend this book, not only for the legends it addresses, but for the opportunity to learn how to interpret the Bible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2017
J
Verified Purchase
Jose Verdejo
Draper, US
★★★★★ 5
So fun and engaging way to learn the historical and the ...
Format: Paperback
So fun and engaging way to learn the historical and the context of all covered in the book. Highly recommended....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2016
D
Verified Purchase
Dan Samuelson
Houston, US
★★★★★ 5
The author handles some of the most misused scriptures very ...
Format: Paperback
The author handles some of the most misused scriptures very well, I was very impressed with his eye on teaching what the verses really mean as well as the context of the verses as a whole.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2018
D
Verified Purchase
David Mapes
Dallas, US
★★★★★ 3
The book itself is good. The content may be awkward or detailed in ...
Format: Paperback
The book itself is good. The content may be awkward or detailed in a way that makes reading tedious and a bit less enjoyable than what likw.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2016
B
Verified Purchase
B.King
Whiting, US
★★★★★ 5
Nursing school book that helps
Format: Paperback
I use this book for nursing school :0. The book covers a broad range of topics including cardiovascular diseases, respiratory conditions, diabetes, mental health, and much more. Each chapter is written by experts in the field, providing a high level of expertise and insight into best practices for managing various medical conditions. One of the things I appreciate about this book is the clear and concise writing style. The guidelines are presented in a format that is easy to understand and follow, making it an ideal resource for busy practitioners. Additionally, the authors have included helpful algorithms and decision trees to aid in the management of complex cases. Another strength of this book is the emphasis on evidence-based medicine. The guidelines are based on the latest research and are regularly updated to reflect new developments in the field. This ensures that healthcare professionals can provide the most effective and appropriate care for their patients. Overall, I highly recommend Clinical Guidelines in Primary Care for healthcare professionals working in primary care settings. It is a comprehensive and practical guide that provides evidence-based recommendations for the diagnosis and management of a wide range of medical conditions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2023

recommand products