Specimen Record TC-00032

Specimen Record
TC-00032

Gyarub Zangbo · Pallasite, ungrouped · 86.11 g

This page is the permanent record for the specimen bearing serial TC-00032. 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-00032
Meteorite
Gyarub Zangbo
Classification
Pallasite, ungrouped
Petrologic type
Coarse grained aggregate of olivine and metal, mean grain size about 5 mm
Weight
86.11 g
Form
Slice
Find location
Qiangtang area, Xizang, China
Shock stage
Low
Weathering grade
Low

Classification record

Published in
Meteoritical Bulletin, MB 110 (2022) as Pallasite. Reclassified as Pallasite, ungrouped in MB 114, revised 7 April 2026
Classifier
A. Irving, UWS, and P. Carpenter, WUSL
Type specimen
120 g including two polished end cuts at the Burke Museum, University of Washington
Total known weight
17.614 kg in 102 pieces as recorded in MB 110. MB 114 states the updated total mass is now more than 200 kg
Approved count
One of 17 approved meteorites classified as Pallasite, ungrouped, as recorded in the Meteoritical Bulletin database in August 2026

Provenance

Gyarub Zangbo was found in October 2020 by G. Tulga during exploration on the Qinghai-Tibet Plateau, in the Qiangtang uninhabited area northeast of the Gyarub Zangbo river in Xizang, China. Many disaggregated olivine and metal fragments were recovered along with a larger metal-rich specimen nearby. All of the material was purchased by Ziyao Wang in October and November 2020, and the Meteoritical Bulletin records the main mass as held by Ziyao Wang. It was classified by A. Irving at the University of Washington and P. Carpenter at Washington University in St. Louis, and reclassified as an ungrouped pallasite in MB 114 following further mineral, trace element and oxygen isotope work. This 86.11 gram slice was acquired by Treasure Coast Meteorite Co. and offered as a classified specimen.

Photographic record

Gyarub Zangbo ungrouped pallasite slice, 86.11g, on white background, specimen record TC-00032
Full face.
Backlit olivine in the Gyarub Zangbo pallasite slice, 86.11g, specimen record TC-00032
Backlit, showing translucent olivine.
Gyarub Zangbo pallasite slice, 86.11g, on dark background, specimen record TC-00032
On dark background.
Macro of an olivine cluster in the Gyarub Zangbo pallasite, 86.11g, specimen record TC-00032
Olivine cluster in macro.
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. Meteorite surfaces, clast patterns and cut faces are individual to each stone, 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 11 August 2026. Classification data reproduced from the Meteoritical Bulletin entry cited above.
Questions regarding this record may be directed to brian@tcmeteorites.com.