Specimen Record TC-00035

Specimen Record
TC-00035

Gyarub Zangbo · Pallasite, ungrouped · 301.28 g

This page is the permanent record for the specimen bearing serial TC-00035. It is issued by Treasure Coast Meteorite Co. as a reference for present and future owners. The photographs below show this specific specimen and are the primary means of verifying it.

Identification

Serial
TC-00035
Meteorite
Gyarub Zangbo
Classification
Pallasite, ungrouped
Weight
301.28 g
Form
Slice, polished both faces
Find location
Xizang, China. Recorded coordinates 33.126°N, 87.079°E.
Surface
Both faces polished and etched, with a thin protective epoxy applied to stabilize the olivine.
Shock stage
Low
Weathering grade
Low

Classification record

Published in
Meteoritical Bulletin 110 (2022) as Pallasite. Reclassified as Pallasite, ungrouped in Meteoritical Bulletin 114 (2026). Approved 13 March 2021.
Classifier
A. Irving, UWS, and P. Carpenter, WUSL
Type specimen
120 g including two polished end cuts at UWB.
Total known weight
17.61 kg as indexed from MB 110. The MB 114 writeup states the updated total mass is now more than 200 kg.
Main mass
Ziyao Wang
Approved count
One of 17 approved meteorites classified as Pallasite, ungrouped, as recorded in the Meteoritical Bulletin database in August 2026.
Bulletin entry
Meteoritical Bulletin Database, Gyarub Zangbo

Provenance

The Meteoritical Bulletin records that Gyarub Zangbo was found in October 2020 by G. Tulga during exploration of the uninhabited Qiangtang region of the Qinghai-Tibet Plateau, northeast of the Gyarub Zangbo river in Xizang, China. Many disaggregated fragments of olivine and metal were recovered together with a larger metal-rich mass nearby. All of the material was purchased by Ziyao Wang in October and November 2020, and the Bulletin records the main mass as being with him. The working names recorded in the Bulletin are WZY-01 and WZY-10.

This slice was acquired by Treasure Coast Meteorite Co. It is not the main mass and is not the type specimen. The polished faces carry a thin protective epoxy, applied to stabilize the olivine and slow oxidation, which is standard practice for pallasite preservation and is disclosed here as a treatment.

Photographic record

Polished face of Gyarub Zangbo ungrouped pallasite meteorite slice showing olivine in etched iron-nickel matrix, 301.28g
One polished face of the slice, showing olivine clusters set in the etched iron-nickel matrix.
Reverse polished face of Gyarub Zangbo ungrouped pallasite meteorite slice, 301.28g
The reverse face. The olivine distribution differs between the two faces, as expected in a slice cut through a coarse aggregate.
Macro view of Gyarub Zangbo pallasite showing translucent amber olivine crystals, 301.28g
Macro of the olivine. Where the crystals remain translucent they transmit amber and honey tones under strong light.
Macro view of Gyarub Zangbo pallasite showing the etched crosshatch pattern in the iron-nickel metal, 301.28g
Macro of the metal, showing the fine crosshatched etch pattern produced by the intergrowth of kamacite and taenite.
On verification. The serial number on the accompanying certificate card is an index to this record. The photographs above and the stated weight are what identify this specimen. Olivine distribution and cut faces are individual to each slice, so a specimen can be compared directly against these images and weighed against the figure recorded here to two decimal places.
Record issued by Treasure Coast Meteorite Co., IMCA Member #3323, Hobe Sound, Florida.
Issued 22 August 2026. Classification data reproduced from the Meteoritical Bulletin entry cited above.
Questions regarding this record may be directed to brian@tcmeteorites.com.

Let customers speak for us

from 20 reviews

I cannot say enough wonderful things about my experience with Treasure Coast! I purchased a lunar piece as a special gift, and their customer service went above and beyond to make it even more meaningful. After learning the story behind my gift (it was for my 1 year wedding anniversary), they surprised me by including the sweetest personalized card that said “Love you to the moon and back” with my name on it. It was such a thoughtful, unexpected touch and genuinely made the whole experience feel special. The lunar piece itself was wonderful, but the care and kindness they put into my order is what really stood out. This is the kind of customer service you remember. Highly recommend! 🌙❤️

Jinger Wolfe

I cannot say enough wonderful things about my experience with Treasure Coast! I purchased a lunar piece as a special gift, and their customer service went above and beyond to make it even more meaningful. After learning the story behind my gift (it was for my 1 year wedding anniversary), they surprised me by including the sweetest personalized card that said “Love you to the moon and back” with my name on it. It was such a thoughtful, unexpected touch and genuinely made the whole experience feel special. The lunar piece itself was wonderful, but the care and kindness they put into my order is what really stood out. This is the kind of customer service you remember. Highly recommend! 🌙❤️

Jinger Wolfe

A really rare chondrite. An H3 with very low weathering with lots, lots of metal.

Andreu del Campo
NWA 18205 H3 Ordinary Chondrite Meteorite End Cut, 196.64g, Teardrop with Reflective Metal

Super great communication with the seller. All documentation for customs was correct and everything went super fast and smooth. The chondrite is exactly like shown on the seller's web.

Andreu del Campo

this is Lavyansh Bhardwaj from Delhi Rohini sector 22 this is awesome to have collected the part of moon 🌙

Anonymous

A beautiful chondrite specimen, perfect for any collection. As always, Bryan is incredibly kind and helpful when answering questions or providing explanations about the specimen; he is also very pleasant to chat with, beyond the transaction itself. I highly recommend buying from him.

Anonymous
NWA XXX Ordinary Chondrite Meteorite Individual, unclassified, 820.15g, Flight Oriented with Contraction Cracks

Everything came as expected.

Andrew Salvador-MacAdam

Excellent and unique. This is a gift and I feel the couple will love it 😀

Andrew Salvador-MacAdam
Adrar 013 Lunar Meteorite Full Slice, Melt Breccia, 2.81g, Polished Both Faces

Highly recommend!!!

Matt Curtis

Received a Gyarub Zangbo and had a great experience. Brian was very responsive and guided me through the process. The piece is beautiful and will absolutely be a return customer!

Anonymous

An authentic piece of the moon for my small and humble meteorite collection. The piece is very accurately described with a COA attached. Highly recommended.

Gianluca Abieri
Bechar 003 Lunar Meteorite Slice, Feldspathic Breccia, 3.19g, Complete Full Slice

A truly positive experience; the products are authentic and truly interesting. Communication with the seller was excellent, and he was open to any questions or concerns about the items for sale. If you're looking to buy meteorites, he's the right seller. Highly recommended!

Gianluca Abieri

Ordered a lunar meteorite for my daughter to take to school during space week, it was a hit! Being able to hold a piece of the moon while teaching kids about the solar system is a fantastic way light the spark of curiosity in the class. The product itself was authentic, beautifully presented, and cherished by my kids. Highly recommend TCM!

Jason Gonzales

Ordered a Laâyoune 002 lunar achondrite for a desk piece and it came in quickly. Good communication and a beautiful specimen.

TCM really is at the top of the game with their cataloging, packaging, etc. highly recommend!

M Savard

Ordered a lunar meteorite for my daughter to take to school during space week, it was a hit! Being able to hold a piece of the moon while teaching kids about the solar system is a fantastic way light the spark of curiosity in the class. The product itself was authentic, beautifully presented, and cherished by my kids. Highly recommend TCM!

Jason Gonzales