SKU: 84094280409

Gyarub Zangbo Pallasite Meteorite Slice, Ungrouped Pallasite, 45.91g, Tibet

Sale price$371.25 Regular price$412.50
Save 10%

Pay in installments of $103.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Gyarub Zangbo Pallasite Meteorite Slice, Ungrouped Pallasite, 45.91g, TibetAn ungrouped pallasite from a unique parent body with translucent olivine This slice of Gyarub Zangbo is not a typical pallasite. Geochemical analysis of its olivine and metallic phases, combined with oxygen and chromium isotope data, confirms that Gyarub Zangbo originated from a parent body distinct from all other known pallasites. It is classified as an ungrouped pallasite, a designation confirmed by the Meteoritical Society in MB 114 (April 2026)

An ungrouped pallasite from a unique parent body with translucent olivine

This slice of Gyarub Zangbo is not a typical pallasite. Geochemical analysis of its olivine and metallic phases, combined with oxygen and chromium isotope data, confirms that Gyarub Zangbo originated from a parent body distinct from all other known pallasites. It is classified as an ungrouped pallasite, a designation confirmed by the Meteoritical Society in MB 114 (April 2026) that places it outside all established pallasite groups.

Hold this slice up to light and the olivine crystals shift from dark olive-green to glowing amber and orange. Some crystals retain genuine translucency despite the terrestrial weathering that has darkened most of the olivine toward brown and black. The metallic matrix between the crystals shows the characteristic polished luster of iron-nickel alloy, with the Widmanstatten structure visible in etched zones at the edges of the metal. This slice carries a thin protective epoxy coating applied to both faces to preserve the olivine and slow further oxidation.

Structure and features

Gyarub Zangbo's olivine fayalite content is Fa21.6-22.8 mol%, slightly higher than typical main group pallasites and consistent with its ungrouped status. The metallic component contains approximately 15.8% nickel, also elevated relative to most main group pallasites, and trace amounts of cobalt, copper, and germanium that further distinguish it from the PMG parent body.

The olivine crystals in this specimen range from small sub-millimeter grains to clusters several centimeters across, distributed heterogeneously across the polished face. The left portion of the slice shows denser crystal packing; the right section has larger metal-rich zones. The natural edge along the top of the slice retains the weathered exterior of the original stone, with visible oxidation showing the specimen's surface exposure history on the Tibetan plateau.

Discovery and provenance

Gyarub Zangbo was discovered in October 2020 by Mr. Tulga during exploration of the uninhabited Qiangtang region of the Qinghai-Tibet Plateau, northeast of the Gyarub Zangbo River in Tibet, China. The find comprised disaggregated olivine and metal fragments scattered across the surface, along with a larger metal-rich mass nearby. The total recovered weight was approximately 17.6 kilograms, making Gyarub Zangbo one of the rarest pallasites available to collectors by total known weight.

The remote plateau environment preserved the specimens from human disturbance while subjecting them to high-altitude weathering. The result is a pallasite with significant surface oxidation on natural faces but excellent interior preservation where the polished slice reveals the original olivine-metal structure. Learn more about this meteorite type: What Is a Pallasite?

Scientific context

The ungrouped classification of Gyarub Zangbo is its most scientifically significant attribute. Main group pallasites, the most common type, including Sericho, Esquel, and Brenham,  share a common parent body linked to the IIIAB iron meteorite group. Gyarub Zangbo does not. Its oxygen isotopic signatures plot along an array between PMG and Eagle Station pallasite values but do not overlap with any other known ungrouped pallasites. The metal composition shows affinity with IIF irons rather than the IIIAB irons linked to the main group, and nickel content is elevated above both Eagle Station and PMG values. These data collectively confirm a parent body distinct from all established pallasite groups.

This makes Gyarub Zangbo a window into a differentiated parent body not represented by any other pallasite in collections. The reclassification to ungrouped in MB 114 (revised April 2026) reflects the current official classification. A 2023 paper by Jiang et al. presented at the 54th Lunar and Planetary Science Conference proposed that Gyarub Zangbo may have carbonaceous origins consistent with formation beyond Jupiter's orbit, based on its oxygen isotope array and olivine chemistry. While this interpretation has not been incorporated into the official Meteoritical Bulletin classification, it represents active scientific inquiry that adds a layer of interest few other pallasites can claim. Browse our Stony-Iron Meteorites collection for related specimens.

Frequently asked questions

Is this meteorite authenticated? Yes. Gyarub Zangbo is an officially classified meteorite. See the official Meteoritical Bulletin entry for Gyarub Zangbo. This specimen ships with a Treasure Coast Meteorite Co. certificate of authenticity. Offered by Treasure Coast Meteorite Co., IMCA #3323.

What makes Gyarub Zangbo different from other pallasites? Most pallasites belong to the main group (PMG) and share a single parent body. Gyarub Zangbo is classified as ungrouped (confirmed in MB 114, April 2026) because its olivine chemistry, nickel content, and oxygen isotope ratios do not match the PMG, Eagle Station group, or any other established pallasite group. Its metal shows affinity with IIF irons rather than IIIAB, placing its parent body outside the known pallasite family tree.

Why does the olivine glow when held to light? Fresh pallasite olivine is transparent to translucent, and many crystals in this specimen retain enough translucency to transmit light. The amber and orange glow visible when the slice is backlit is the natural color of the olivine itself, the same mineral as the gemstone peridot. Terrestrial weathering gradually makes olivine opaque, but Gyarub Zangbo's relatively recent discovery means many crystals preserve this optical quality.

What does the epoxy coating do? The thin epoxy applied to both faces stabilizes the olivine crystals and slows further terrestrialization, the oxidation process that gradually darkens and opacifies the olivine. It does not affect the visual quality of the specimen and is standard practice for pallasite preservation.

What is included? The polished slice shown, on an acrylic display stand, with a Treasure Coast Meteorite Co. certificate of authenticity. This slice carries a thin protective epoxy coating on both faces.

Collector significance

At 17.6 kilograms total known weight, Gyarub Zangbo is among the rarest pallasites by total mass, rarer than Fukang, rarer than most named pallasites in collector circulation. Its anomalous classification adds scientific significance beyond simple rarity: this is a meteorite from a parent body not represented by any other known specimen. For collectors building a serious pallasite collection or a scientifically representative stony-iron suite, Gyarub Zangbo occupies a category that no other available specimen can fill. The backlit olivine quality in this lot is exceptional for a specimen of this age and exposure history.

Meteoritical Bulletin entry: Gyarub Zangbo | Classification: Pallasite (ungrouped) | Find, Xizang, China, 2020 | Total known weight: 17.61kg | MB 110 (2022), revised MB 114 (2026)

Learn more about Gyarub Zangbo: origin, classification, and science

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: 84094280409

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Ms. Rea
Birmingham, US
★★★★★ 5
It's perfect support.
Size: Extra Back Support (21-Inch), Color: Dark Grey
The best way to describe the super comfy reading pillow is super comfy. I use it to sit up while watching something soothing to my mind on tv and due to its comfyness and softness, it's perfectly just right for my back. The funny thing is within a few minutes I'm knocked out sleep, which is a good thing. It's soft but firm lumbar area and arms feels oh so comfortable. It gives the best sleep quality and less toss and turning. I highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
M
Verified Purchase
Michael Simko
Lexington, US
★★★★★ 4
Great Size and Comfort
Size: Extra Back Support (21-Inch), Color: Dark Grey
2 months after buying a different reading pillow I felt it was time to buy a different one based on the comfort and support. I found this one listed for a good price. After carefully looking through the listing, I bought the 21" size. On my first night of usage, I was already impressed with the comfort and support vs the reading pillow I had bought 2 months prior. I like how this one has nice support for my neck and head as I'm relaxing on my bed with my laptop and phone. The texture of the filling gives it a very nice combination of cushioning and firmness. The horizontal feature line in the center of the pillow is a nice feature for back and neck support thanks to it giving the pillow some flexibility. As for the arms, their length, width, height, and cushioning are very good for resting my arm while I'm using the wireless mouse with my laptop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
G
Verified Purchase
GhostFingersXP
Bozeman, US
★★★★★ 5
Book Reading Wife Approved
Size: Standard (18-Inch), Color: Sage Green
I purchased this for my wife who reads quite a bit and she absolutely loves it. She said it feels soft, is the right size for her, and makes book reading more comfortable for her. I call it a win.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
A
Verified Purchase
A Brown
Pawtucket, US
★★★★★ 3
Not good quality
Size: Standard (18-Inch), Color: Dark Grey
Comfy, however it’s getting flat an only had it a week
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
L
Verified Purchase
Linda F. Del Valle
Alexandria, US
★★★★★ 5
Love this ❤️❤️
Size: Standard (18-Inch), Color: Rose Pink
Love love super comfy soft yet firm Great quality good value the material is sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026

recommand products